... or Random Length Products OD W.T. Standard Length Seamless pipes 4" to 24" SCH20,30,40,60,STD XS ... term: 30%T/T advanced payment,70% balance. Production Carbon seamless steel pipe Specification 10.29mm-508mm (1/8''-20'')× 1. ... GB, ASTM, API 5L, API 5CT,DIN, JIS and so on Out Diameter 10.29mm-508mm. (1/8''- ... 12Cr1MoV,Q235, ST42,ST52,A106-a,A106-b, and so on Length 6-12m. As customers requestments.