GB 9948-2013 石油裂化用無縫鋼管 下載
GB9948-2013石油(you)裂化用(yong)(yong)(yong)(yong)無縫(feng)鋼(gang)管(guan) 一、范(fan)圍(wei)本標(biao)準(zhun)規定了(le)石油(you)裂化用(yong)(yong)(yong)(yong)無縫(feng)鋼(gang)管(guan)的分(fen)類、代號(hao)、尺寸、外形(xing)、重量(liang)、技術要求、試驗方法、檢驗規則(ze)、包裝、標(biao)志和質量(liang)證明書。本標(biao)準(zhun)適用(yong)(yong)(yong)(yong)于石油(you)化工用(yong)(yong)(yong)(yong)爐管(guan)、熱(re)交換器管(guan)和壓力管(guan)道用(yong)(yong)(yong)(yong)不銹鋼(gang)無縫(feng)鋼(gang)管(guan)。二、規范(fan)性引用(yong)(yong)(yong)(yong)文件下列...