Sell API casing tubing from china 1.Standard: BS,JIS,GB,ASME,ANSI ... P110 3.Out Dia Sell API casing tubing from chinaStandard: BS,JIS,GB,ASME,ANSI,DINGrade:API ... /metallographic detector/roughness testing/impact inspection/hardness tester and so on.Production capacity: 300,000 metric tons ... of your inquiries would be highly appreciated. We are devoted to offering you high quality products with the most ...