The factory produced cold rolled precision light control system looks smooth, uniform thickness, no oxide layer, high precision. Steel pipe can be divided into round holes, spline type, plum-type and other widely used in automobiles, motorcycles, power, petrochemical, shipbuilding, aerospace, bearings, pneumatic components, fuel tanks, boiler equipment, medical equipment, fitness equipment and other industries. Various national standard and customized non-standard precision tubes according to user needs. Special materials, specifications can be booked in advance, the company has 60 fine drawing unit 2, unit 3 sets of 50 pull 12CrNi3 fine steel suppliers, producers outside diameter of 10-108mm 12CrNi3 precision steel pipe wall thickness, material 1-16mm 10 # 20 #, 45 #, 16Mn, 20Cr, 40Cr, 20crmo, 30crmo, 35crmo, 42crmo, 20crmnti, etc. Our annual production of China National Standard (GB) United States ASTN (ASME) standards, such as seamless steel pipe, specifically low-pressure boiler pipe, high pressure boiler pipe, ship seamless steel pipe, oil cracking pipe, high pressure chemical fertilizer equipment, seamless steel pipe, tubing and casing pipe, line pipe, hollow rod, ordinary fluid pipe, structural tubes, Corten steel, resistant to seawater corrosion titanium pipe and steel pipe imports, product variety, complete specifications, widely used in petroleum, chemical, power, boilers, ships, machinery and other industries, has been sold throughout the country. Many products have been exported to the Middle East, India, Southeast Asia and Europe and other regions. The company is the North large seamless steel pipe, alloy pipe, seamless pipes, high pressure boiler pipe, ship pipe, oil cracking pipe, oil casing, fertilizer, sales business. Varieties, excellent quality and reasonable price, Main: 4140 steel, 4130 seamless steel pipe, alloy pipe 4140, 4130 alloy steel pipe, seamless tube 4140. My unit with a good reputation, perfect service, adequate supply in the domestic industry in the proverbial! Which is good location 12CrNi3 steel, transportation is very convenient. Shanghai Baoshan Iron and Steel Company annual proxy 12CrNi3 steel Jiangsu, Inner Mongolia Baotou Steel, Tianjin Seamless, Tianjin small seamless, Hunan Hualing Steel, Anshan, Liaoning, Chengdu Steel and other major steel production of steel tubes, boiler tubes. Main Material: 20 # in the low-pressure boiler tube, 20G high-pressure boiler tubes, 27SiMn hydraulic prop tube, 16Mn low-alloy steel pipe, 12CrMo alloy tube, 12Cr1MoV alloy tube, 12Cr1MoVG high alloy pipe, 15CrMo alloy tubes.