бесшовных стальных труб

Our company specilized in kinds of materials of pipes, cross, tees, elbows, cap, coupling, etc. The materials include stainless steel,carbon steel,seamless steel,alloy steel etc. We provide high quality with low price.When you order just tell us your detailed demand information,such as size,specification,standard. Meanwhile you have any questions pls contact us with no hesitation. specification China standard Steel grade standard Seamless steel tubes and pipes for structural purpose GB/t8162-1999 10,20,35, 40Mn2,45Mn2,27SiMN, 20Cr,40Cr,20CrMO, 35CrMoA1,50CrV,30CrMnSi ASTM A500-98 ASTM A501-98 ASTN A519-98 JIS G3441-1994 JIS G3444-1994 Seamless steel tubes and pipes for liquid service GB/T8163-1999 10,20,Q295,Q345 ASTM A53-98 ASTM A192 ASME S192 JIS G3452-1998 FIS G3454-1998 DIN 1629-1984 Seamless steel tubes and pipesfor casing API SPEC 5CT J55,N80 API Seamless steel tubes for oil casing and tubing in oil wells APE SPEC 5L A,B,X42 API Seamless steel tubes and pipes for high pressure boiler GB5310-1995 20G,20MnG,15MoG,20MoG, 12Cr1MoVG,15CrMoVG,12Cr2MoG, 12Cr2MoVWTiB,12Cr3MoVSiTiB ASTM A106-96A ASTM A213-95a JIS G3461-1988 JIS G3462-1998 DIN 17175-1979 BS3059 Part 21990 Seamless steel tubes for low and medium pressure boilers GB3087-1999 10,20 ASTM A179 ASTM A192 ASTM SA179,SA192 BS3059 Seamless steel tubes for high pressure chemical fertilizer equipment GB6479-86 10,20G,Q345,Q390,10MoVNB,12CrMo 15CrMo, ISO 9329-2-1997 ASTM A161-94 Seamless steel tubes for petroleum cracking GB9948-86 10,20,12CrMo 15CrMo,,1Cr2Mo,1Cr5Mo JIS G3441-1988 China GB ASTM DIN17175 10# ASTM A106 Gr A ASTM A53 Gr A ASTM A179-C ASTM A214-C ASTM A192 St 37-2 St 35.8 St 35.4 20# ASTM A106 Gr B ASTM A53 Gr B ASTM A315 Gr.B ASTM A210-A-1 St42 St45 16Mn ASTM A210-C St 52.4 St 52.3 St 52 45# ASTM 1045 CK45