... API,JIS CommodityOil casing pipe/tubePlace of originTianjin , China(Mainland)StandardAPI,GBMaterialJ55,K55,N80,L80,N80,P11,P91 ... )SCH10-SCH80(0.5-140mm)SurfaceBlack/brightBrand NamePetroleum, oil , gas, chemistry, electrical power, metallurgy,etcPackingBundles, ... qualityProductivity1000MT/ WeekMOQ10MTApplication Generally used in oil casing, conveying gas and oil,chemical industry,etc NoteWe are Tianjin ...