We supply steel tubes of ASTM,DIN,API,JIP GB,ect. 1We offer a complete range of carbon, alloyed and stainless steel tubes.2Our ... Sch160 3Standards, such as ASTM, ASME, ANSI, DIN, JIP, GB, API, etc. 4 It used for energy,chemical and petrochemical industry ... well as seamless pipes with carbon steel materials, all kinds of alloyed materials and stainless materials, with a quick delivery. steel ...