Seamless hollow sections, a large number of pipes used for transporting fluids, such as transportation of oil, gas, gas, water and some solid materials, pipes and so on. Is an economic cross-section steel, widely used in the manufacture of structural parts and mechanical parts, such as drill pipe, automotive drive shafts, bicycle frames and construction using steel scaffolding steel pipe manufacturing annular parts, can improve material utilization, simplify manufacturing process, saving materials and processing time, such as bearing rings, jack sets, has been widely used to make steel. Depending on the applications, Linyi seamless often divided about several species. 1, line pipe: for the oil and gas industry in oxygen, water, oil delivery pipe. 2, straight seam steel: for general structural support, such as low pressure fluid. 3, spiral pipe: for low pressure liquid delivery pipe. 4, alloy tube: used in petroleum, chemical, electric power, boiler industry with high temperature resistance, low temperature resistance, corrosion resistance seamless pipe. 5, stainless steel pipe: For petroleum, aviation, metallurgy, food, water, electricity, chemicals, chemical fiber, medicine and machinery industries. 6, cryogenic tube: suitable for -45 ℃ ~ -195 ℃ level low pressure vessels and low temperature heat exchanger pipes seamless steel pipes. Source: http: //www.lygccj.com