... , IFI, ISO, JIS, AS,BS, EN, SAE,ASTM3.GradeGr.2,5,8,10, 2H, DH, /8/4.ThreadUNC, UNF, UNEF, M ... , BSW, BSF, TR, ACME, NPT 5.MaterialCarbon steel(#1035,#1045,40Cr,35CrMo,42CrMo,B7,20Mn2,M20 ... .D.G., Black Oxided, Dacromet,Geomet,etc8.Production TechniqueCold forming,Hot forging,Machining,Heat treatment,etc9.Production Capacity2-3X20'GP/Month10.PackageBulk ...