国产美女福利一区_国产精品一区二不卡的视频毛片久_日韩精品在线看看_午夜男女爽爽爽色视頻免费的_精品一区二区免费播放_欧美性开放亚洲熟妇久久精品_中文天堂最新版www_國產精品電影一區二區_日韩亚洲欧美中文高清_亚洲 欧美 天堂 综合

不銹鋼管件河北巨細頭廠執(zhí)行尺度

bs 4677-1984 specification for arc welding of austenitic stainless steel pipework for carrying fluids 輸送液體用奧氏體不銹鋼管件的電弧焊類型 cj/t 152-2001 stainless steel press-fittings 不銹鋼卡壓式管件 cj/t 232-2006 light gauge stainless steel pipes and insert.pressfittings 薄壁不銹鋼內(nèi)插卡壓式管材及管件 din 11867-2005 elbows for pigging systems，大口徑鍛造法蘭， chemical and pharmaceutical industries - clamp connections for stainless steel tubes - weld-on type 飲食業(yè)、化家產(chǎn)和醫(yī)藥業(yè)用管件.不銹鋼管卡箍毗連.焊接式 ej/t 403-1999 specification for primary system arc-welded stainless steel larger size pipes and fittings for pressurized water reactor nuclear power plants 壓水堆核電廠一回路系統(tǒng)大口徑電弧焊接不銹鋼卷制鋼管及管件技能條件 ej/t 404-1999 specification for primary system seamless stainless steel butt-welding fittings for pressurized water reactor nuclear power plants 壓水堆核電廠一回路系統(tǒng)無縫對接焊不銹鋼管件技能條件 gb/t 19228.1-2003 stainless steel press fittings 不銹鋼卡壓式管件 gb/t 19228.2-2003 light gauge stainless steel pipes for stainless steel press-fittings 不銹鋼卡壓式管件毗連用薄壁不銹鋼管 gb/t 19228.3-2003 o-rings for stainless steel press-fittings 不銹鋼卡壓式管件用橡膠o型密封圈 qb/t 2003-1994 食品家產(chǎn)用不銹鋼對縫焊經(jīng)受件 拖 動 條 ，大口徑鍛造法蘭， for aseptic。

welding fittings in stainless steel， chemical and pharmaceutical industries 無菌、化學和制藥家產(chǎn)的生鐵系統(tǒng)用管件出產(chǎn)機、不銹鋼焊經(jīng)受件 din 32676-2001 fittings for the food，。