Shandong Zhongzheng Steel Pipe Manufacturing Co., Ltd.

Shandong Zhongzheng Steel pipe Manufacturing CO.,LTD is a large seamless steel pipe manufacturing enterprise . It was founded in 2006 with 600 thousand ton of designed and manufactured and 25 hundred million sales income per year . Now we introduce our product as follows. Product One: (1).Product Name : Seamless Carbon Steel Pipe (2). Brand : Zhongzheng Steel Pipe ( By ourself ) (3).Specification: OD 21.3mm - 355.6mm ( 1/2'' - 14'') (4) Standard ; ASTM A106 GR B , ASTM A53 GR B SAE1020 SAE1045 JIS G4051 S20C JIS G4051 S45C ... [Details]