CN104070212A - Combined tools for machining holes and machining methods - Google Patents
Combined tools for machining holes and machining methods Download PDFInfo
- Publication number
- CN104070212A CN104070212A CN201410292270.4A CN201410292270A CN104070212A CN 104070212 A CN104070212 A CN 104070212A CN 201410292270 A CN201410292270 A CN 201410292270A CN 104070212 A CN104070212 A CN 104070212A
- Authority
- CN
- China
- Prior art keywords
- tool
- knife bar
- machining
- hole
- cutter head
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B51/00—Tools for drilling machines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B41/00—Boring or drilling machines or devices specially adapted for particular work; Accessories specially adapted therefor
- B23B41/02—Boring or drilling machines or devices specially adapted for particular work; Accessories specially adapted therefor for boring deep holes; Trepanning, e.g. of gun or rifle barrels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B51/00—Tools for drilling machines
- B23B51/06—Drills with lubricating or cooling equipment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B51/00—Tools for drilling machines
- B23B51/08—Drills combined with tool parts or tools for performing additional working
Abstract
The invention discloses two kinds of combined tools arranged on lathes for machining holes and machining methods thereof; according to the combined tools for machining holes and the machining methods thereof, the problems that in machining, the existing hole machining methods are large in drill bit consumption, vertical positions of noses of the tools in workpiece holes are inconvenient to adjust and cooling liquid cannot be fully filled can be solved. The combined tool for machining holes comprises a toolbar and a tool bit, wherein one end of the toolbar is provided with a Morse taper shank while the other end is provided with a square groove; the tool bit is installed in the square groove through a fastener; two sides of the end of the tool bit are respectively provided with a chip breaker groove; the toolbar is provided with a through hole along the axis direction; one end, close to the tool bit, of the through hole is provided with a step-shaped hole, and the diameter of the step-shaped hole is more than the width of the tool bit. When the combined tool is used for machining a deep hole, the cooling liquid can be fully filled, so that cutting environment is improved, and service life of the tool and machining quality of product are enhanced; with improvement on the tool bit, compared with the original technology of repairing a waste connecting sleeve by a drill bit, the combined tool is greatly improved in machining efficiency.
Description
Technical field
The invention belongs to Machining Technology field, especially relate to the gang tool of two kinds of machining holes and utilize the method in above-mentioned tool sharpening hole.
Background technology
No matter be the processing of boring, reaming or internal thread, generally all need the sufficient cooling fluid of annotating, coolant injection is near the drill bit or knife bar aperture under normal circumstances, in the time carrying out deep hole machining, cooling fluid does not enter cutter head position or enters few, significantly reduce cooling effect and the lubrication to cutter and workpiece, and then affect the crudy of cutter life and product.
In the drilling tool of blast furnace opening and down-hole rock drilling uses, tend to greatly produce many waste and old adapter sleeves because turning round the power of refusing, most of size of these adapter sleeves is all intact, recycling by repairing.In the waste and old adapter sleeve operation of reparation, conventionally use conventional bit to carry out drilling removal to the drill head or the arbor head that fracture in adapter sleeve, because the hardness of drill steel or arbor head is between HRC48 ~ 53, and the hardness of conventional bit is generally in HRC52 left and right, add snap irregular, therefore bit wear interrupts greatly and often phenomenon when drilling operation, constantly wants coping drills, and this processing method exists that labour intensity is high, production efficiency is low and consume the high defect of the cost of charp tool.On market, also have the carbide drill of extreme hardness, but poor toughness is not shock-resistant, is not suitable for processing the snap of irregular, and this drill bit is expensive.
On lathe when reaming or machining internal thread, the high and low position of the point of a knife of cutter in workpiece hole is larger on impacts such as cutter life, workpiece surface quality and working (machining) efficiencies.In prior art, while adjusting the high and low position of point of a knife before processing or in processing, to adjust on knife rest by the equipment on turning-machine for setting-on cutting tools of increase and decrease different-thickness, or adjust by sharpening cutter, the size of thrust also can exert an influence to the high and low position of point of a knife, and therefore position of tool tip adjustment complex operation and precision are not high.
Summary of the invention
The gang tool and the processing method thereof that the invention discloses machining hole on two kinds of lathes, can fully address the above problem.
In order to achieve the above object, the invention provides following technical scheme:
A kind of gang tool of machining hole, comprise knife bar and cutter head, described knife bar one end has Morse taper shank, the other end has square groove, and described cutter head is arranged in described square groove by securing member, the both sides, termination of cutter head are respectively provided with a chip-breaker, and described knife bar is provided with a through hole along axis direction.
Further, between described cutter head and square groove bottom, there is gap.
Further, described through hole top is provided with stepped hole, and the diameter of described stepped hole is greater than cutter head height.
The gang tool of the second machining hole, comprise knife bar and be arranged on the body of tool bit on knife bar, described knife bar is provided with a through hole along axis direction, knife bar one end has on Morse taper shank, other end lateral surface and has screw thread, described body of tool bit has the internal thread matching with knife bar external screw thread, body of tool bit top has cross recess, in four cell bodies of described cross recessed, is separately installed with a small bit tool; In cross recessed cell body interval, be provided with the chip removal district to lower recess, each chip removal district is connected with a V-shaped groove, interior oblique four apertures that are provided with of body of tool bit, and described V-shaped groove is communicated with by aperture with the through hole in knife bar.
Further, described small bit tool is fixed in cross recessed cell body by securing member.
Further, described screw thread is corrugated thread.
The processing method of gang tool, comprises the steps:
Lean against in lathe saddle flat clamp body, fastening lead screw for top slide, one end of gang tool Morse taper shank is inserted in clamp body mohs tapered bore, fastening screw, cooling fluid pipe is inserted in knife bar intermediate throughholes, make cooling fluid can enter cutter head position, start lathe, saddle drives clamp body clamping knife bar to carry out work.
When needs point of a knife is during higher than center, unclamp the fixture screw rod in clamp body, knife bar is rotated up to fastening clips screw rod after desired location; If need point of a knife lower than center, unclamp the fixture screw rod in clamp body, knife bar is rotated down to fastening clips screw rod after desired location.
Beneficial effect:
Gang tool provided by the invention and processing method, in the time carrying out deep hole machining operation, cooling fluid can fully be annotated, and has improved cutting environment, has improved cutter life and product processing quality; By the improvement of cutter head, and originally repaired the comparison of waste and old adapter sleeve technology with drill bit, working (machining) efficiency significantly improves.In addition, drop into the production time increase of other products.In addition, match with the clamp body of the original design of inventor, gang tool provided by the invention also can be realized simple and easy to do reaming processing.
Brief description of the drawings
The gang tool structural representation of the machining hole that Fig. 1 provides for embodiment mono-;
Fig. 2 is one end schematic diagram that in embodiment mono-, knife bar is installed cutter head, (a) for the schematic diagram of cutter head is housed, (b) for the schematic diagram of cutter head is not installed;
Fig. 3 is body of tool bit structural representation in embodiment bis-;
The gang tool structural representation of the machining hole that Fig. 4 provides for embodiment bis-;
Fig. 5 is drilling clamp for lathe structural representation.
Reference numerals list:
1-Morse taper shank, 2-knife bar, 3-corrugated thread, 4-screw, 5-cutter head, 6-chip-breaker, 7-through hole, 8-body of tool bit, 9-aperture, 10-cross recess, 11-screw, 12-small bit tool, 13-clamp body, 14-screw, 15-open seam, 16-mohs tapered bore, 17-fixture screw rod, 18-packing ring, 19-lead screw for top slide, 20-lathe saddle, 21-square groove, 22-stepped hole, 23-chip removal district, 24-V shape groove.
Detailed description of the invention
Below with reference to specific embodiment, technical scheme provided by the invention is elaborated, should understands following detailed description of the invention and only be not used in and limit the scope of the invention for the present invention is described.
Embodiment mono-:
As shown in Figure 1, a kind of gang tool of machining hole, comprises knife bar 2 and cutter head 5, and one end of knife bar 2 is Morse taper shank 1 structure, and by this structure, gang tool can insert in the mohs tapered bore 16 of tail stock or boring grab, realizes handling fast; One square groove 21 is arranged at the other end top of knife bar 2, in this square groove, can pack cutter head 5 into, and cutter head 5 is fastening with two screws 4, and respectively there is a chip-breaker 6 both sides, termination of cutter head 5; There is a through hole 7 centre of knife bar 2, and when deep hole processing, cooling fluid can enter from through hole 7.Because knife bar is comparatively elongated, in order to ensure the rigidity of knife bar, the diameter of through hole 7 can not be excessive, add man-hour we find, the diameter of through hole 7 is highly smaller compared with cutter head 5, cooling fluid, in the time that through hole 7 flows into, is stopped and cannot smooth and easyly flow out by cutter head 5 like this.In order to make cooling fluid cooling cutter effectively, near cutter head 5, should there is the region of flowing out for cooling fluid, we can have certain distance apart from square groove 21 bottoms at the seasonal cutter head 5 of installation cutter head 5, thereby form gap, and this gap can be flowed out for cooling fluid; Also can stepped hole 22 be as shown in Figure 2 set on through hole 7 tops, the diameter of stepped hole is greater than cutter head 5 height, in Fig. 2, between stepped hole and cutter head 5, form upper and lower two place's breach (gap), pack the rear cooling fluid of cutter head 5 into and enter, flow into from through hole 7 two breach outflows that form by stepped hole and cutter head 5 in stepped hole 22, again, can effective cooling cutter and workpiece.
While using this cutter, first knife bar 2 is inserted in tail stock taper hole, cutter head 5 is put into the square groove of knife bar 2, with two fastening cutter heads of screw 4, promote tail stock and make cutter head 5 near wanting working position, fixing tail stock, start lathe ， Shou Oscillating tailstock handle and start drilling processing.
Embodiment bis-:
As Fig. 3, shown in Fig. 4, the gang tool of the second machining hole, comprise knife bar 2 and be arranged on the body of tool bit 8 on knife bar 2, described knife bar 2 is provided with a through hole along axis direction, knife bar 2 one end have Morse taper shank 1, on other end lateral surface, having corrugated thread 3(the corrugated thread is here only the concrete example of one of screw thread, all may be applied in the technical program by those skilled in that art as long as forming the helicitic texture being connected), described body of tool bit 8 has the internal thread matching with knife bar 2 external screw threads, body of tool bit 2 tops have cross recess 10, in four cell bodies of described cross recess 10, be separately installed with a small bit tool 12, the quantity of small bit tool 12 is four, realize multi-cutter multi-blade and participate in machining, especially be applicable to snap and the deep hole machining of cutting irregular.Small bit tool 12 is the conventional aluminium very hard high-speed tool steel that adds on market, and the cutter sectional of 200 millimeters long repeatedly uses, and relatively originally adopts the method for drill bit processing, and the cost of charp tool significantly declines.In the cell body interval of cross recess 10, be provided with the chip removal district 23 to lower recess, because cross recess has four intervals, therefore the quantity in chip removal district is also four.Each chip removal district is connected with a V-shaped groove 24, and V-shaped groove 24 is located on knife bar 2 outer surfaces and along knife bar 2 axis directions and extends, and obviously, the quantity of V-shaped groove is also four, and chip removal district 23 matches with V-shaped groove 24 and can realize near the good chip removal of cutter head.Interior oblique four apertures 9 that are provided with of body of tool bit, described V-shaped groove is communicated with by aperture 9 with the through hole 7 in knife bar 2.In the time of deep hole machining, cooling fluid can flow to body of tool bit 8 end faces, abundant cooling cutter and workpiece from through hole 7, aperture 9.
While using this cutter, first knife bar 2 is inserted in tail stock taper hole, body of tool bit 8 is screwed on knife bar 2, in the cross recess 10 of body of tool bit 8, be respectively charged into small bit tool 12 and undertaken fastening by screw 11, promoting tail stock makes cutter head 5 near wanting working position, fixing tail stock, starts lathe ， Shou Oscillating tailstock handle and starts drilling processing.This method is applicable to snap and the deep hole machining of irregular.
Certainly, the knife bar 2 arranged outside corrugated threads that provide at embodiment mono-, unloading cutter head 5 can be arranged on body of tool bit 8 on knife bar 2, realizes the processing of above-mentioned snap and deep hole.
Embodiment tri-:
Inventor is in the utility model patent " a kind of drilling clamp for lathe " (ZL 2,007 2 0144284.7) of applying for and obtaining the authorization for 2007, a kind of drilling clamp for lathe is disclosed, as shown in Figure 5, comprise clamp body 13, on clamp body, have mohs tapered bore 16, mohs tapered bore 16 is provided with open seam 15 to clamp body 13 edges, be interval with two screws 14 in clamp body mohs tapered bore taper hole one side perpendicular to open seam direction, adding clamp screw rod 17 in screw arranges packing ring 18 between fixture screw rod 17 and clamp body 13.
Two kinds of gang tools that the present invention proposes can be used in conjunction with above-mentioned fixture, wherein the processing method of the first cutter is: lean against in lathe saddle 20 flat clamp body 13, fastening lead screw for top slide 19, be the cutter in embodiment mono-by the knife bar 2(that contains cutter head 5) insert that in clamp body mohs tapered bore 16, (mohs tapered bore center is contour with the alignment of shafts and axiality is consistent, without verification), fastening clips screw rod 17, under the effect of open seam 15, fixture can tightly encase knife bar 2, cooling fluid pipe is inserted in knife bar 2 intermediate throughholes 7, make cooling fluid can enter cutter head 5 positions, start lathe, saddle drives clamp body 13 clamping knife bars 2 to carry out automatic drilling or reaming.On engine lathe, can, by observing the degree of depth of saddle dial control hole, on numerically controlled lathe, pass through the degree of depth of the accurate control hole of program.
If need point of a knife higher than center, knife bar 2 can be rotated up to desired location, if need point of a knife lower than center, knife bar can be rotated down to desired location, fastening screw 17, under the effect of open seam 15, fixture can tightly encase knife bar 2, and cooling fluid pipe is inserted in knife bar 2 intermediate throughholes 7, makes cooling fluid can enter cutter head 5 positions, start lathe, saddle drives clamp body 13 clamping knife bars 2 to carry out reaming processing.
The processing method of the second cutter is:
Lean against in lathe saddle 20 flat clamp body 13, fastening lead screw for top slide 19, be the cutter in embodiment bis-by the knife bar 2(that body of tool bit 8 is installed) insert that in clamp body mohs tapered bore 16, (mohs tapered bore center is contour with the alignment of shafts and axiality is consistent, without verification), fastening clips screw rod 17, under the effect of open seam 15, fixture can tightly encase knife bar 2, cooling fluid pipe is inserted in knife bar 2 intermediate throughholes 7, make cooling fluid can enter cutter head 5 positions, start lathe, saddle drives clamp body 13 clamping knife bars 2 to carry out snap and the deep hole machining of irregular.On engine lathe, can, by observing the degree of depth of saddle dial control hole, on numerically controlled lathe, pass through the degree of depth of the accurate control hole of program.
The disclosed technological means of the present invention program is not limited only to the disclosed technological means of above-mentioned embodiment, also comprises the technical scheme being made up of above technical characterictic.It should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention, can also make some improvements and modifications, these improvements and modifications are also considered as protection scope of the present invention.
Claims (8)
1. the gang tool of a machining hole, comprise knife bar and cutter head, it is characterized in that: described knife bar one end has Morse taper shank, the other end has square groove, described cutter head is arranged in described square groove by securing member, the both sides, termination of cutter head are respectively provided with a chip-breaker, and described knife bar is provided with a through hole along axis direction.
2. the gang tool of machining hole according to claim 1, is characterized in that: between described cutter head and square groove bottom, have gap.
3. the gang tool of machining hole according to claim 1, is characterized in that: described through hole top is provided with stepped hole, and the diameter of described stepped hole is greater than cutter head height.
4. the gang tool of the second machining hole, comprise knife bar, it is characterized in that: also comprise the body of tool bit being arranged on knife bar, described knife bar is provided with a through hole along axis direction, knife bar one end has on Morse taper shank, other end lateral surface and has screw thread, described body of tool bit has the internal thread matching with knife bar external screw thread, and body of tool bit top has cross recess, in four cell bodies of described cross recessed, is separately installed with a small bit tool; In cross recessed cell body interval, be provided with the chip removal district to lower recess, each chip removal district is connected with a V-shaped groove, interior oblique four apertures that are provided with of body of tool bit, and described V-shaped groove is communicated with by aperture with the through hole in knife bar.
5. the gang tool of machining hole according to claim 2, is characterized in that: described small bit tool is fixed in cross recessed cell body by securing member.
6. the gang tool of machining hole according to claim 2, is characterized in that: described screw thread is corrugated thread.
7. a processing method for gang tool, is characterized in that, comprises the steps:
Lean against in lathe saddle flat clamp body, fastening lead screw for top slide, one end of gang tool Morse taper shank described in any one in claim 1～4 is inserted in clamp body mohs tapered bore, fastening screw, cooling fluid pipe is inserted in knife bar intermediate throughholes, make cooling fluid can enter cutter head position, start lathe, saddle drives clamp body clamping knife bar to carry out work.
8. the processing method of gang tool according to claim 5, is characterized in that: when needs point of a knife is during higher than center, unclamp the fixture screw rod in clamp body, knife bar is rotated up to fastening clips screw rod after desired location; If need point of a knife lower than center, unclamp the fixture screw rod in clamp body, knife bar is rotated down to fastening clips screw rod after desired location.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410292270.4A CN104070212B (en) | 2014-06-26 | 2014-06-26 | Combined tools for machining holes and machining methods |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410292270.4A CN104070212B (en) | 2014-06-26 | 2014-06-26 | Combined tools for machining holes and machining methods |
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| CN104070212A true CN104070212A (en) | 2014-10-01 |
| CN104070212B CN104070212B (en) | 2017-05-24 |
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| CN201410292270.4A Active CN104070212B (en) | 2014-06-26 | 2014-06-26 | Combined tools for machining holes and machining methods |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104476475A (en) * | 2014-12-17 | 2015-04-01 | 重庆欧帆门业有限公司 | Rapid doornail extraction tool |
| CN111390246A (en) * | 2020-05-09 | 2020-07-10 | 宁波江丰复合材料科技有限公司 | Method for prolonging service life of composite cutter |
| CN112643414A (en) * | 2020-12-09 | 2021-04-13 | 航天科工哈尔滨风华有限公司 | Method for processing and manufacturing hard alloy drill bit |
| CN113910019A (en) * | 2021-09-24 | 2022-01-11 | 杭州电子科技大学 | Conical optical fiber automatic grinding machine based on cone angle fine adjustment mechanism and grinding method thereof |
| CN114393410A (en) * | 2022-01-22 | 2022-04-26 | 杭州新恒力电机制造有限公司 | Processing equipment for main pole iron core inner wall reversing groove |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0853999A1 (en) * | 1995-10-05 | 1998-07-22 | Kanefusa Corporation | Rotary tool with shank |
| JP2001170810A (en) * | 1999-12-15 | 2001-06-26 | Hitachi Tool Engineering Ltd | Twist drill |
| CN201304500Y (en) * | 2008-12-09 | 2009-09-09 | 中国航空工业第六○二研究所 | A new deep hole machining cutter holder |
| CN202779939U (en) * | 2012-09-04 | 2013-03-13 | 成都市双流金石机械制造有限公司 | Deep hole drill bit |
| CN203156115U (en) * | 2012-12-21 | 2013-08-28 | 浙江欣兴工具有限公司 | Spade drill cutter arbor provided with support blocks |
-
2014
- 2014-06-26 CN CN201410292270.4A patent/CN104070212B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0853999A1 (en) * | 1995-10-05 | 1998-07-22 | Kanefusa Corporation | Rotary tool with shank |
| JP2001170810A (en) * | 1999-12-15 | 2001-06-26 | Hitachi Tool Engineering Ltd | Twist drill |
| CN201304500Y (en) * | 2008-12-09 | 2009-09-09 | 中国航空工业第六○二研究所 | A new deep hole machining cutter holder |
| CN202779939U (en) * | 2012-09-04 | 2013-03-13 | 成都市双流金石机械制造有限公司 | Deep hole drill bit |
| CN203156115U (en) * | 2012-12-21 | 2013-08-28 | 浙江欣兴工具有限公司 | Spade drill cutter arbor provided with support blocks |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104476475A (en) * | 2014-12-17 | 2015-04-01 | 重庆欧帆门业有限公司 | Rapid doornail extraction tool |
| CN111390246A (en) * | 2020-05-09 | 2020-07-10 | 宁波江丰复合材料科技有限公司 | Method for prolonging service life of composite cutter |
| CN112643414A (en) * | 2020-12-09 | 2021-04-13 | 航天科工哈尔滨风华有限公司 | Method for processing and manufacturing hard alloy drill bit |
| CN113910019A (en) * | 2021-09-24 | 2022-01-11 | 杭州电子科技大学 | Conical optical fiber automatic grinding machine based on cone angle fine adjustment mechanism and grinding method thereof |
| CN114393410A (en) * | 2022-01-22 | 2022-04-26 | 杭州新恒力电机制造有限公司 | Processing equipment for main pole iron core inner wall reversing groove |
| CN114393410B (en) * | 2022-01-22 | 2022-12-13 | 杭州新恒力电机制造有限公司 | Processing equipment for main pole iron core inner wall reversing groove |
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|---|---|
| CN104070212B (en) | 2017-05-24 |
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Address after: 210039 new building, Zhonghua Gate, Yuhuatai District, Jiangsu, Nanjing Patentee after: Nanjing Baodi Meishan Industrial City Development Co.,Ltd. Patentee after: SHANGHAI MEISHAN IRON & STEEL Co.,Ltd. Address before: 210039 new building, Zhonghua Gate, Yuhuatai District, Jiangsu, Nanjing Patentee before: NANJING MEISHAN METALLURGY DEVELOPMENT Co.,Ltd. Patentee before: SHANGHAI MEISHAN IRON & STEEL Co.,Ltd. |
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Effective date of registration: 20211105 Address after: 210039 new building, Zhonghua Gate, Yuhuatai District, Jiangsu, Nanjing Patentee after: Nanjing Baodi Meishan Industrial City Development Co.,Ltd. Address before: 210039 new building, Zhonghua Gate, Yuhuatai District, Jiangsu, Nanjing Patentee before: Nanjing Baodi Meishan Industrial City Development Co.,Ltd. Patentee before: SHANGHAI MEISHAN IRON & STEEL Co.,Ltd. |
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