API 5B Tubing and casing thread Standard: ASTM,JIS,EN,ISO,BS,GOST,API ... .T.: 2mm-200mm API 5B Threading, gaging and thread inspection of casing, tubing and line pipe thread ASTM A519 50B40 50B44 50B46 ... G3429 STH38, STH55, STH67JIS G3439 STO-G, STO-H, STO-J, STO-N,STO-C, STO-D, STO-EJIS G3441 SCr ... TO CONTACT US IF ANY INQUIRY! API 5B Threading, gaging and thread inspection of casing, tubing ...