标 准 号:GB 12383.4-1990简体中文标题:PN2.5MPa (25bar) 凸面球墨铸铁管法兰盖繁體中文標題:PN2.5MPa (25bar) 凸面球墨鑄鐵管法蘭蓋English name:Ductile iron pipe blank flanges with raised face for ...
标 准 号:GB 12380.5-1990简体中文标题:PN4.0MPa(40bar)凸面整体球墨铸铁管法兰繁體中文標題:PN4.0MPa(40bar)凸面整體球墨鑄鐵管法蘭English name:Integral ductile iron pipe flanges with raised face f...
标 准 号:GB 12383.5-1990简体中文标题:PN4.0MPa (40bar) 凸面球墨铸铁管法兰盖繁體中文標題:PN4.0MPa (40bar) 凸面球墨鑄鐵管法蘭蓋English name:Ductile iron pipe blank flanges with raised face for P...
标 准 号:GB 12380.1-1990简体中文标题:PN1.0MPa(10bar)凸面整体球墨铸铁管法兰繁體中文標題:PN1.0MPa(10bar)凸面整體球墨鑄鐵管法蘭English name:Integral ductile iron pipe flanges with raised face fo...
标 准 编 号:GB/T 9122-2010 简体中文标题:翻边环板式松套钢制管法兰 繁體中文標題:翻邊環板式松套鋼制管法蘭 English name :Loose plate steel pipe flanges with lapped pipe end and pressed collar with l...
标 准 编 号:GB/T 9116.2-2000 简体中文标题:凹凸面带颈平焊钢制管法兰繁體中文標題:凹凸面帶頸平焊鋼制管法蘭 English Name:Hubbed slip-on-welding steel pipe flanges with male and female face标准简介:...
标 准 号:GB 12380.6-1990简体中文标题:PN5.0MPa(50bar)凸面整体球墨铸铁管法兰繁體中文標題:PN5.0MPa(50bar)凸面整體球墨鑄鐵管法蘭English name:Integral ductile iron pipe flanges with raised face fo...