all materials small and large sizes low prices good reputation specializing 1.standard:Din,ISO,JIS& ANSI,GB,BS 2.Size of thread rod:30-6000mm 3.surface:zp,hdg black 4.iso rohs certificate.thread rod1.various kinds of thread rod available.2.high quality competive price.3.material of thread rod:stainless steel ,carbon steel.4.surface treatment:black,white blue,zinc nickel Passivation,Galvanized or ...