1.oil casing pipe 2.Mainly export to Southeast Asia,Africa,Mid East, ... Asia,North America etc. 3.Standard : GB , API,JIS CommodityOil casing pipe/tubePlace of originTianjin , China(Mainland)StandardAPI,GBMaterialJ55,K55,N80 ... 15-25 after orderQualityHigh qualityProductivity1000MT/ WeekMOQ10MTApplication Generally used in oil casing, conveying gas and oil,chemical industry,etc NoteWe are Tianjin ...