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86-21-68415567

info@topsteelpipe.com

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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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dernières Nouvelles

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...
How to Clean the Oil Casing Bare ...
About the cleaning of oil casing bare pipe: The bare oil casing pipes are cleaned and arrive at the processing plant. Before the formal processing, the oil stain, lime soil, oxide scale rust and old coating on the inner and outer surfaces of the pipeline must be cleaned. The r...
Length dimension of seamless stee...
Steel pipe is the most basic dimensions of the various dimensions of the length of the steel refers to steel length, width, height, diameter, radius, diameter, outside diameter and wall thickness of equal length, Legal units of measurement is the length of steel meters (m), ce...

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