... Unprimed internal fusion bonded epoxy coating of line pipe Standard: ASTM,JIS,EN,ISO,BS,GOST,API O.D.: 5mm-1500mm ... 50B46 50B50 50B60 51B60EN10208 EN 10210...ASTM A53 A106 A179...JIS G3429 JIS 3445...DIN 1630 DIN 17175...API 5CT OCTG seriesCasing:K55 ... T2, T5, T5b, T5c, T9, T11, T12,T17, T21, T22, T23, T24, T36,T91, T92, T122, T911ASTM A252 Grade 1, Grade ...