1.oil casing pipe 2.Mainly export to Southeast Asia,Africa,Mid East ... etc. 3.Standard : GB , API,JIS CommodityOil casing pipe/tubePlace of originTianjin , China(Mainland)StandardAPI,GBMaterialJ55,K55,N80,L80 ... , conveying gas and oil,chemical industry,etc NoteWe are Tianjin Hong-Peng High-Pressure Alloy Pipe Sales Co.,ltd,which ... to contact us for more pofessional information. seamless oil casing pipe