API drill pipes 1.Standard: BS,JIS,GB,ASME,ANSI,DIN 2. ... L80,API P110 3.OD:2 3/8"-20" API drill pipes Standard: BS,JIS,GB,ASME,ANSI,DINGrade:API J55 ... corrosion/universal tensile tester/spectrum analyzer/metallographic detector/roughness testing/impact inspection/hardness tester and so on.Production capacity: 300,000 ...