Sell API casing tubing from china 1.Standard: BS,JIS,GB, ... J55,API K55,API L80,API P110 3.Out Dia Sell API casing tubing from chinaStandard: BS,JIS,GB,ASME,ANSI ... ends.Packing: in bundle,wooden cases,non woven cloth or bags,or as required.Test: Eddy current/X-ray test/intergranular ...