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 alloy tube is mainly used for low and medium pressure boiler (working pressure is generally not more than 5.88Mpa 10 # precision seamless, working temperature below 450 ℃) of heating surface tubes; for High pressure boilers (above 9.8Mpa working pressure in general, the working temperature between 450 ℃ ~ 650 ℃) of heating surface tubes, economizer, superheater, reheater, petrochemical industrial pipe High Alloy Pipe Grade: 15CrMoG , 12Cr2MoG, 12Cr1MoVG, 12Cr2MoWVTiB, 10Cr9Mo1VNb, SA210A1, SA210C, SA213 T11, SA213 T12, SA213 T22, SA213 T23, SA213 T91, SA213 T92, ST45.8 / Ⅲ, 15Mo3,13CrMo44,10CrMo910 etc. 35 # precision seamless _ _ virtue Tai'an precision seamless tube Co., Ltd. is provided by virtue of Industry Liaocheng. 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!