Large-diameter thick-walled seamless steel pipe implementation standards--51 steel pipe network to provide 1, the general structure of seamless steel pipe: GB8162-2008 2, transport fluids used seam pipe: GB8163-20083, boiler seamless steel pipe: GB3087-2008 4, Boiler high-pressure seamless pipe: GB5310-2008 (ST45.8-III type) 5. High-pressure seamless steel pipe for chemical fertilizer equipment: GB6479-1999 6. Seamless steel pipe for geological drilling: YB235-70 7. Seamless for oil drilling Steel pipe: YB528-65 8. Seamless steel pipe for petroleum cracking: GB9948-88 9. Seamless pipe for petroleum drilling boring: YB691-70 10. Seamless steel pipe for automobile half shaft: GB3088-1999 11. Seamless steel pipe for ships : GB5312-1999 12, cold-drawn cold-rolled precision seamless steel tubes: GB3639-1999 13, a variety of alloy tubes 16Mn, 27SiMn, 15CrMo, 35CrMo, 12CrMov, 20G, 40Cr, 12Cr1MoV, 15CrMo.
In addition, GB/T17396-1998 (hot-rolled seamless steel pipe for hydraulic pillars), GB3093-1986 (high pressure seamless steel pipe for diesel engine), GB/T3639-1983 (cold-drawing or cold-rolled precision seamless steel pipe), GB / T3094-1986 (cold-drawn seamless steel pipe shaped steel pipe), GB/T8713-1988 (hydraulic and pneumatic cylinder with precision inner diameter seamless steel pipe), GB13296-1991 (boiler, heat exchanger stainless steel seamless steel pipe), GB/T14975 -1994 (stainless steel seamless pipe for structural use), GB/T14976-1994 (stainless steel seamless pipe for fluid transport) GB/T5035-1993 (seamless steel pipe for automotive semi-axle casing), API SPEC5CT-1999 (sleeve and tubing) Specification) GB9711.1-1997 (natural gas transport) and so on.
In addition, GB/T17396-1998 (hot-rolled seamless steel pipe for hydraulic pillars), GB3093-1986 (high pressure seamless steel pipe for diesel engine), GB/T3639-1983 (cold-drawing or cold-rolled precision seamless steel pipe), GB / T3094-1986 (cold-drawn seamless steel pipe shaped steel pipe), GB/T8713-1988 (hydraulic and pneumatic cylinder with precision inner diameter seamless steel pipe), GB13296-1991 (boiler, heat exchanger stainless steel seamless steel pipe), GB/T14975 -1994 (stainless steel seamless pipe for structural use), GB/T14976-1994 (stainless steel seamless pipe for fluid transport) GB/T5035-1993 (seamless steel pipe for automotive semi-axle casing), API SPEC5CT-1999 (sleeve and tubing) Specification) GB9711.1-1997 (natural gas transport) and so on.
Welded Mesh Fence(2D/3D)
Aluminum window Co., Ltd. , http://www.iron-fence-manufacturer.com