API обсадных труб

API casing pipeseamless steel tube for oil casing seamless pipe HeBei Yaosheng Petroleum Special Pipe Co., Ltd is a professinal manufacturer of OCTG casing and tubing pipes under the API spec 5CT set in 1996.All the pipes series products can be manufactured as per national or international standards ,including API5CT,API5L,GB/T8163,GB/T8162,GB/T3087,GB/T5310 and also ASTM,DIN and JIS. In order to assure product quatity, our company has establish inside QC lab with advanced chemical and physical inspection equipment, such as metallographic microscopes, and DNT equipment and so on.we also have thrid party certification to ensure product quality. API casing pipeseamless steel tube for oil casingseamless pipe 4-1/2”-20” Ib/ft 9.50-113.00 OD 114.30-508mm Nominal linear bc T&C 14.14-197.93 kg/m Wall thickness 5.21-20.24mm Payment terms L/C,T/T,P/A packing Bundles or as customer’s demand Min order 3 ton Surface finishing Varnished or antirust paiting or as customers’demand Port of shipment Tianjin Port China API casing pipeseamless steel tube for oil casingseamless pipe