一区二区三区中文字幕免费,无码一区二区三区免费视频,人妻三级日本三级日本三级极,免费无码午夜福利片69,国产真实乱对白精彩,国产中文字幕日韩精品,中文字幕有码高清日韩,在线观看免费人成视频,久久精品国产亚洲AV高清色欲,喂奶人妻被中出中文字幕

工程標(biāo)準(zhǔn)

·         《建筑給水排水及采暖工程施工質(zhì)量驗收規(guī)范》GB50242-2002

·         《通風(fēng)與空調(diào)工程施工質(zhì)量驗收規(guī)范》GB 50243-2002

產(chǎn)品標(biāo)準(zhǔn)

·         《通用閥門法蘭和對焊連接鋼制球閥》GB/T12237-89

·         《鐵制和銅制球閥》GB/T 15185-1994

·         《鋼制閥門 一般要求》GB/T 12224-2005

·         《生活飲用水輸配水設(shè)備及防護材料的安全性評價標(biāo)準(zhǔn)》 GB/T17219-1998

標(biāo)準(zhǔn)編號 標(biāo)準(zhǔn)中文名稱 標(biāo)準(zhǔn)英文名稱

·         sy/t5835-93 壓裂用井口球閥

·         gb/t12237-1989 通用閥門法蘭和對焊連接鋼制球閥 general purpose industrial valves--flanged and butt-weld endsteel ball valves

·         gb/t15185-1994 鐵制和銅制球閥 cast iron and copper alloy ball valves

·         jb/t7745-1995 管線球閥

·         jb/t53167-1999 球閥 產(chǎn)品質(zhì)量分等

·         jc/t783-2004 玻璃纖維增強改性酚醛塑料球閥

·         jb/t8861-2004 球閥 靜壓壽命試驗規(guī)程

·         nf e29-350-2003 工業(yè)用閥.鋼制球閥、球狀截止閥和止回閥 (industrial valves - steel globe and globe stop and checkvalves.)

·         nf e29-466-1987 工業(yè)閥門.旋轉(zhuǎn)閥.黃銅球閥.規(guī)范 (industrial valves. brass ball-valves. specifications.)

·         nf e29-354-2003 工業(yè)用閥.鑄鐵球閥 (industrial valves - cast iron globe valves.)

·         nf e29-465-1986 工業(yè)閥門.旋轉(zhuǎn)閥.銅鋁球閥.規(guī)范 (industrial valves. cupro-aluminium ball valves.specification.)

·         nf d36-406-2004 建筑物用閥.建筑物內(nèi)飲用水給水用手動銅合金和不銹鋼球閥.試驗和要求 (building valves - manually operated copper alloy and stainlesssteel ball valves for potable water supply in buildings - tests andrequirements.)

·         nf e29-335-2003 石油和天然氣工業(yè)用尺寸為dn 100及更小的鋼閘閥、球閥和止回閥 (steel gate, globe and check valves for sizes dn 100 andsmaller, for the petroleum and natural gas industries.)

·         nf e29-139-1998 建筑物氣體裝置用手工操作球閥和死底錐形旋塞 (manually operated ball valves and closed bottom taper plugvalves for gas installations for buildings.)

·         ansi/asse 1002-1979 廁所沖水箱球閥 (water closet flush tank ball cocks)

·         ansi/api 608-2002 對焊和法蘭端金屬球閥 (metal ball valves - flanged and butt-welding ends )

·         bs en 13709-2003 工業(yè)用閥.鋼制球閥、球狀截止閥和止回閥 (industrial valves - steel globe and globe stop and checkvalves)

·         bs en 13789-2003 工業(yè)用閥.鑄鐵球閥 (industrial valves - cast iron globe valves)

·         bs en iso 15761-2003 石油和天然氣工業(yè)用尺寸為dn 100及更小的鋼閘閥、球閥和止回閥