Contact: Wang Shan 15,922,054,164 QQ: 1494092364 stainless steel pipe standard GB2270-80 stainless steel seamless pipe GB/T14976-94 fluid transport stainless steel seamless pipe the GB/T14975-94 structure GB13296-91 boiler with stainless steel seamless pipe and heat exchanger stainless steel seamless pipe GJB2608-96 (YB676-73) aviation aviation structural steel seamless steel pipe GJB2296-95 (YB678-71) the aviation with stainless seamless steel pipe YB/T679-97 (YB679-71) with 18A hollow rivet wall seamless GJB2609-96 (YB680-71) aviation structural wall seamless YB/T681-97 (YB681-71) air duct 20A thin-walled seamless steel pipe GB3090-82 stainless steel small diameter steel pipe GB5310- 95 high-pressure boiler seamless steel pipe GB3087-82 low-pressure resistant stainless seamless steel pipe GB3089-92 GB9948-88 petroleum cracking extremely thin-walled seamless steel pipe seamless steel pipe ASTM A213 boilers, heat exchangers, ferritic and austenitic General requirements for general purpose austenitic stainless steel seamless and welded steel pipe ASTM A312 austenitic stainless steel seamless steel pipe welded steel pipe welded steel pipe ASTM A450 carbon steel, ferritic and austenitic alloy steel pipe alloy steel seamless steel pipe ASTM A269 General requirements for the specialized use of ASTM A530 ferritic steel and alloy steel ASTM A789 general requirements for carbon austenitic stainless steel seamless and welded steel JIS G3456-88 mechanical structure with stainless steel tube with a stainless steel tube JIS JIS G3448-88 ordinary pipeline G3459-88 pipe with stainless steel pipe IS G3463-88 boiler, heat exchanger stainless steel tube Q / HYAD 101-91 Chemical seamless long steel pipe (0Cr18NI11T) Q / HYAD 103-91 00Cr18Ni5MO3Si2 duplex stainless steel seamless steel