CN102913688B - 混凝土泵送装置及输送管的制造方法 - Google Patents
混凝土泵送装置及输送管的制造方法 Download PDFInfo
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CN102913688B true CN102913688B (zh) | 2015-04-01 |
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US20150361728A1 (en) * | 2014-06-17 | 2015-12-17 | Vetco Gray Inc. | Cold Forming and Heat Treatment Process for Tubulars |
CN104209699B (zh) * | 2014-06-25 | 2017-01-11 | 南通福乐达汽车配件有限公司 | 一种汽车尾气再利用装置用法兰环成形方法 |
CN109201830B (zh) * | 2017-07-06 | 2019-07-09 | 中国航空制造技术研究院 | 一种防止不带底筒形件旋压过程出现翻边缺陷的方法 |
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DE2231842A1 (de) * | 1972-06-29 | 1974-01-17 | Leifeld & Co | Schraegschulterfelge und verfahren zu ihrer herstellung |
CN100446884C (zh) * | 2005-12-22 | 2008-12-31 | 北京有色金属研究总院 | 一种带内外法兰的大直径超长筒形件旋压加工方法 |
CH699688B1 (de) * | 2008-10-01 | 2012-12-14 | Inficon Gmbh | Flanschverbindung. |
CN102278550B (zh) * | 2011-07-07 | 2012-12-26 | 中联重科股份有限公司 | 混凝土输送管道及其制造方法 |
CN202360038U (zh) * | 2011-11-08 | 2012-08-01 | 重庆中重石油机械有限公司 | 整体式防喷直管 |
CN102561704B (zh) * | 2012-02-29 | 2015-02-18 | 三一汽车制造有限公司 | 工程机械及其伸缩式布料臂架 |
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Owner name: SANY AUTOMOBILE MANUFACTURING CO., LTD. Free format text: FORMER OWNER: SANYI HEAVY INDUSTRY CO LTD Effective date: 20130509 |
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Effective date of registration: 20130509 Address after: 410100 Changsha economic and Technological Development Zone, Hunan City, the 31 industrial city Applicant after: SANY Automobile Manufacturing Co., Ltd. Address before: 410100 Changsha economic and Technological Development Zone, Hunan City, the 31 industrial city Applicant before: Sanyi Heavy Industry Co., Ltd. |
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Effective date of registration: 20151112 Address after: 316 413000, comprehensive service building, East New District, hi tech Zone, Hunan, Yiyang Patentee after: HUNAN SANYI ZHONGYANG MACHINERY CO., LTD. Address before: 410100 Changsha economic and Technological Development Zone, Hunan City, the 31 industrial city Patentee before: SANY Automobile Manufacturing Co., Ltd. |
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