... (4) Standard ; a.ASTM A106 GR B , ASTM A53 GR B, ASTM A178 GR C, , J55 b.SAE1020,SAE1045 c.JIS G4051 S20C ,JIS G4051 ... , oil development etc.(6) packing : Paint Varnish Coating , Plastic Caps and mark on the pipe(7) payment term: T/T or ... L/C at sight.(8)Method: cold drawn, hot rolled or hot ...