Seamless Carbon and Alloy Steel Mechanical Tubing Shanghai Ling Steel International Trade Co., Ltd. Base Info Type:SeamlessTechnique:Cold DrawnSurface Treatment:BareUsage:Special PurposeSection Shape:RoundTrademark:LG PIPEOrigin:China Description Pre:GB Alloy Structural Steel 30crmnsia 40crni Steel Sheet of Steel Plate in China Next:Austenitic Stainless Steel Tubing