GB5310-2008 (high-pressure boiler seamless steel tubes). Mainly used for power plants and nuclear power plant boilers, high temperature, high pressure fluid delivery header and pipes. Representative material for 20G, 12Cr1MoVG, 15CrMoG so on. GB5312-1999 (ship Seamless Carbon and carbon-manganese). Mainly used for ship boilers and Superheater I, II grade pressure pipe. Representative material for 360,410,460 steel grade and so on. GB6479-2000 (high pressure chemical fertilizer equipment, seamless steel pipe). Mainly used for conveying high temperature and high pressure fluid pipe fertilizer equipment. Representative material for 20,16Mn, 12CrMo, 12Cr2Mo so on. GB9948-2006 (petroleum cracking seamless steel pipe). Mainly used in oil refinery's boilers, heat exchangers and pipes conveying fluid. The representative material for 20,12CrMo, 1Cr5Mo, 1Cr19Ni11Nb so on. GB18248-2000 (seamless steel gas cylinders). Mainly used for the production of gas, hydraulic cylinders. The representative material for 37Mn, 34Mn2V, 35CrMo and so on. GB / T8713-1988 (hydraulic and pneumatic cylinder with precision internal diameter seamless steel pipe). Mainly used for the production of cold-drawn or hydraulic and pneumatic cylinder with a diameter size with precision seamless steel tubes. The representative material for 20,45 steel. GB13296-2007 (boiler, heat exchanger with stainless steel seamless pipe). Mainly used in chemical boiler, superheater, heat exchangers, condensers, catalytic tubes. Use of high temperature, high pressure, corrosion-resistant steel. The representative material for 0Cr18Ni9,1Cr18Ni9Ti, 0Cr18Ni12Mo2Ti so on. GB / T14975-2002 (structure seamless steel pipe stainless steel). Mainly used for general structure (hotels, restaurants decoration) and the chemical industry's resistance to atmospheric mechanical structure, acid corrosion and has a certain strength of steel. The representative material for 0-3Cr13,0Cr18Ni9,1Cr18Ni9Ti, 0Cr18Ni12Mo2Ti so on. GB / T14976-2002 (fluid transport stainless steel seamless pipe). Mainly used for pipeline transportation of corrosive media. Representative material for 0Cr13,0Cr18Ni9,1Cr18Ni9Ti, 0Cr17Ni12Mo2,0Cr18Ni12Mo2Ti so on. YB / T5035-1993 (automobile axle casing seamless steel pipe). Mainly used in the production of automobile axle casing and drive axle axle shaft tubes of high-quality carbon structural steel and alloy steel hot-rolled seamless steel tubes. The representative material for 45,45Mn2,40Cr, 20CrNi3A q345 small-diameter pipe and other small-diameter steel pipe, small diameter steel pipe, pipe industry by virtue virtue Liaocheng Industry Co., Ltd. Liaocheng virtue Pipe Co., Ltd. (www.meidegc.com) (www.meidegc.com) (www.mdwfg.com) (www.mdggc.com) strong, credible, Liaocheng in Shandong steel industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead virtue of Industry and you work into the brilliant, for a better future!