Our long-term supply American standard seamless unit. Liaocheng Runtong seamless steel pipe production and operation of the company: including: structural seamless steel tubes, fluid tubes, low pressure boiler tubes; high-pressure boiler pipe, oil cracking pipe, geological control, fertilizer tubes, thin alloy seamless pipes and tubes of various domestic and imported alloy pipe. Volume control is a highlight of my company, the volume control for volume production, according to the requirements of length and diameter tube, the volume of quality management to achieve seamless performance. Precision seamless steel tubes is another highlight of my company, precision seamless steel tubes tolerance control in less than 10 wire, precision seamless steel than the U.S. standard of quality, the company can produce American Standard ASTM seamless steel pipe seamless steel pipe German standard DIN standard on British standard BS JIS Seamless Steel Seamless Steel Line Pipe API5CT API5L high pressure seamless steel pipe seamless steel shine petroleum cracking high-pressure chemical fertilizer equipment, low and medium pressure boiler seamless steel pipe seamless steel pipe seamless steel ships. Our year-round agency Baosteel, Cheng Gang, Tianjin Steel, Bao Steel, Anshan Steel, West steel, smelting steel, Steel, Hengyang Steel, and often the top ten steel mills and Germany, Japan, Russia and other large and medium sized high-quality structure of imported production pipe GB8162-99, the fluid tube GB8163-99, low and medium pressure boiler pipe GB3087-2000, high-pressure boiler pipe GB5310-95, the fertilizer tube GB6479-86, petroleum cracking pipe GB9948-88, special hydraulic prop pipe GB/T17396-98 , geological drilling tube YB235-70, automobile axle casing YB/T5035-96 other standard seamless steel tubes. Material: 10 #, 20 #, 35 #, 45 #, 16Mn, 27SiMn, 40Cr, 15CrMo, 35CrMo, 45Mn2, 12Cr1MoV, 38CrMoAl, DZ40-70, Cr5Mo special coupling materials and oil field J55 (37Mn5), N80 (36Mn2V, 42MnMo7) Seamless ...... run through all the staff welcome customers to negotiate business