GB 50235《工業金屬管道工程施工規范》的管道分級(類)
GB50235《工(gong)(gong)業金屬管(guan)道(dao)(dao)工(gong)(gong)程(cheng)(cheng)施(shi)工(gong)(gong)規范》配套使用GB50184《工(gong)(gong)業金屬管(guan)道(dao)(dao)工(gong)(gong)程(cheng)(cheng)施(shi)工(gong)(gong)質量驗收規》和GB50236《現(xian)場設(she)備、工(gong)(gong)業管(guan)道(dao)(dao)焊接(jie)工(gong)(gong)程(cheng)(cheng)施(shi)工(gong)(gong)規范》。工(gong)(gong)業金屬壓力管(guan)道(dao)(dao)應按TSGD001《壓力管(guan)道(dao)(dao)安全技術(shu)監察規程(cheng)(cheng)-工(gong)(gong)業管(guan)道(dao)(dao)》的規定劃分為GC1、G...