CangZhou QianCheng Steel-Pipe CO.,LTD. , my company 's  products is seamless steel pipe , standard: API 5L ,ASTM A106, ASTM A53, ASTM A179, ASTM A192  DIN  EN,JIS and  so on , size from 1/2" to 32",wall thickness from SCH20 TO SCH160,elboe, tee, reducer, cap, flange,and so on, We pledged: Shorter production cycle, better production quality, more satisfactory post-sale service!