Ten billion Hebei Steel Pipe Manufacturing Co., Ltd. Professional production and sales 13703275487/QQ308969729/0317-5128266 
 Seamless steel pipe is a hollow sections, peripheral joints round, square, moment to open the steel. Seamless steel pipe perforation made by ingot or solid tube capillary, and then made by the hot-rolled, cold rolled or cold drawn. Seamless steel tubes with hollow cross-section, a large number of solid steel pipes, steel round bar used for conveying the liquid compared to the same torsional strength in bending, lighter, is an economic cross-section steel, widely used in the manufacture of the structure parts and mechanical parts, such as drill pipe, automotive drive shafts, bicycle frames, and the construction using steel scaffolding. Seamless steel pipe production technology: the hot-rolled, hot expanded, cold drawing, cold rolling, as well as centrifugal casting of seamless steel pipe. The product specifications are divided into 8-1240 * 1 * 200mm. 
 General statement made by a structural steel hot-rolled or cold-rolled steel 16Mn, 5MnV low-alloy structural steel or 40Cr, 30CrMnSi, 45Mn2, 40MnB etc. 10,20,30,35,45 and other high-quality carbon seamless steel pipe. 10, 20 and other low-carbon steel seamless pipe for fluid transportation pipeline. 45,40 Cr and in carbon steel seamless pipe used for the manufacture of mechanical parts, such as automobiles, tractors force components. General seamless steel pipe to ensure the strength and flattening test. Hot-rolled steel, hot-rolled state or heat treatment delivery; cold rolling to heat treatment delivery. 
 The commonly used criteria: 1, the structure with seamless pipe (GB/T8162-2008) is used for general structure and mechanical structure of seamless steel pipe. 
 2, the transmission fluid with seamless steel pipe (GB/T8163-2008) general seamless steel pipe for conveying water, oil, gas and other fluids. 
 3, low and medium pressure boiler seamless steel pipe (GB3087-2008) is used in the manufacture of a variety of structures is low and medium pressure boiler superheated steam pipes, high-quality carbon structural steel hot boiling water pipe and locomotive boilers, superheated steam pipe and arch brick works rolled and cold drawn (rolled) seamless steel pipe. 
 4, the high-pressure boiler seamless pipe (GB5310-2008) is used in the manufacture of high pressure and over pressure water tube boiler heating surface with high-quality carbon steel, alloy steel and heat-resistant stainless steel seamless. 
 5, fertilizers, equipment with high pressure seamless steel pipe (GB6479-2000) is applicable in the operating temperature of -40 ~ 400 ° C, working pressure of 10 ~ 30Ma chemical equipment and pipeline quality carbon structural steel and alloy steel seamless steel pipe. 
 6, petroleum cracking seamless steel pipe (GB9948-2006) is applicable to petroleum refinery furnace tubes, heat exchangers and pipe seamless steel pipe. 
 Main purposes: a large number for the pipeline transportation, such as the transportation of oil, gas, gas, water and some solid materials pipeline.