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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

Disadvantages of hot rolled steel
Disadvantages cf hot rolled steel After hot rolling, the non-metallic inclusions In the steel are pressed into plates, and delamination occurs. Due to the tensile properties, the delamination of the steel in the thickness direction is significantly deteriorated, and may occur ...
Introduction of welding methods f...
The welding method of thick-walled steel pipe should be selected according to the material and wall thickness of the thick-walled steel pipe. Because different welding methods have different arc heat and arc force, they also have different characteristics. The characteristics ...
Main features of ASTM A179 cold d...
1.There is thick dense zinc layer covered in the cold drawn seamless tube surface, it can avoid cold drawn seamless tube matrix and any contact with the corrosion solution to protect the steel matrix from corrosion. In the general atmosphere, the surface of the zinc layer to f...
Thin wallstainless steel tube
Austentc thin-walled stainless steel pipes refe to stainless steel pipes with a wall thicktness outer dameter ratio of not more than 6%. The thin-walled stainless steel pipes and fittings for building water supply contain chromlum (Cr ) content of more than 12%, and the ferroa...
What are the factors related to t...
What are the factors related to the tightness of the inner coating and the tube? The type of heating equipment, heating method, fuel type, heating temperature, fineness of plastic powder; additive composition, etc. will all have a certain impact, but the key is still the exter...

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