Up to November 2015, Shinestar Holdings Group had finished annual sales target in advance, and o...
(1) Hot rolling can reduce the energy consumption and reduce costs significantly. When hot rol...
1. Appearance; Welded steel pipe have a welding line on the inner wall but seamless have no. ...
However,in front of 2015, it is a big challenge for us. For now, our challenge now is double; On&nbs...
Steel pipe- Condition of delivery It refers to the status of plastic deformation or heat treatm...
First, acid pickling the steel pipe to clean oxide of iron on the surface. After that, clean the p...
1) Domestic oil casing adopt SY/T6194-96 standard, and random length from 8m-13m. And length und...
Large diameter steel pipe generally refers to OD over 500 mm diameter straight seam steel pipe, ...
1) Pipes have a longitudinal weld, internal and external weld both adopts a submerged arc welding. ...
Property 1.1 According to the supplying of mechanism performances about the domestic seamless st...
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