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SHANGHAI TOP STEEL CO., LTD.
Phone: 86-21-68415567
Phone: 86-21-68415587
E-mail: info@topsteelpipe.com
Fax: 86-21-68415587-8002

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poslední novinky

Type of Weld
Butt weld: full extent by the weld metal into the base metal penetration butt welds and Incomplete penetration butt welds. How much can not meet the needs of diameter penetration butt weld force is small, and there are severe stress concentration. Penetration butt wold butt we...
Carbon Steel Pipe VS Galvanized S...
The carbon steel pipe is generally divided Into two kinds: structural carbon steel pipe and toil carbon steel pipe. For the former one, it is mainly used in the manufacture of various mechanical parts and engineering components, Its carbon content is generally less than 0.70%....
Defects Of Welded Steel Pipe
Welded Steel Pipe production process is a steel sheet,strip,and other various molding methods using the straight press roll helical direction curling into a desired crossectional shape, and then by means of heart, prssure, different methods of welding weld weld together to obt...
Three Kinds of Welded Steel Pipe
Shanghai Top Steel Co., Ltd. produces three kinds of welded steel pipe, including ERW steel pipe, SSAW steel pipe and LSAW steel pipe. Next, Shanghai Top Steel Pipe will share the difference among them There are two kinds of welding technology used in the production of ERW ste...
How to Control Quality Standards ...
Straight seam welded pipe quality control well can be safely carried out production operations, but also to protect the personal safety of the operator inevitable elements. The main application areas for large-span Wangjiagongcheng, building steel structure engineering, electr...

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