... Gr.B 4: ASME B36.10 Standard: JIS, GB, DIN, ASTM, APIStandard: JIS G3454-2007, JIS G3455-2005, GB/T ...Grade: 10#-45 ... & API,BV,IA106 GRADE B Seamless Steel Pipe(1) Product Name : Seamless Carbon Steel Pipe (2) Brand : Zhongzheng Steel Pipe (Manufacturer ) (3) Specification: OD :3/8 ... 5L, X42, X52, and 5CT ,J55 ,K55SAE1020 ,SAE1045 JIS G4051, S20C ,S45C, JIS G3454, JIS 3454 ,STPG42 DIN 17175 ST 45-8, ST ...