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JPS6038138A
(ja)
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二重壁式らせん状熱可塑性パイプの製造装置
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KR960004750B1
(ko)
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튜우브내벽에 그루우브를 형성시켜 주기 위한 냉간인발방법과 그 장치
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US3526692A
(en)
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Manufacture of wire reinforced plastic pipe
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US3015355A
(en)
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Method for forming spirally ribbed tubing
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SU217345A1
(enExample)
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US1810885A
(en)
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Method of tapering metal tubes
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WO1988001207A1
(en)
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Process and apparatus for manufacturing tube bends
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KR20030028848A
(ko)
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금속관의 냉간축경 롤 성형방법 및 이것에 의하여 성형된금속관
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JP2010051990A
(ja)
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ネック付きエルボの製造方法
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US1622340A
(en)
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Process of curing rubber hose and the like
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US2508517A
(en)
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Method of forming integral fins on tubing
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JP4388525B2
(ja)
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内側が肉厚な壁区間を有する車軸を成形する方法
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US1982369A
(en)
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Method and machine for making corrugated tubes
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US4157024A
(en)
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Forming die and process for tubular fittings
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US307993A
(en)
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sharp |
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US1124359A
(en)
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Process of making forged-steel pipe-necks.
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US2051949A
(en)
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Method and apparatus for reducing tubing
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FR2435342A1
(fr)
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Procede et appareillage pour la production de tubes flexibles ondules en spirale
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US1931306A
(en)
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Method of making pipe elbows
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US1120269A
(en)
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Tube-corrugating apparatus.
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JPH01245914A
(ja)
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外径真円度の優れた金属管の製造方法
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SU343745A1
(ru)
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Способ правки проволоки
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US656623A
(en)
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Device for flanging tubes.
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RU2201302C1
(ru)
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Способ винтовой прокатки
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GB195278A
(en)
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Improved method for bending or curving copper and like pipes
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