GB 9948-2013 石油裂化用無縫鋼管 下載
GB9948-2013石油(you)裂化用(yong)無(wu)縫(feng)(feng)鋼(gang)管(guan)(guan)(guan)(guan) 一、范(fan)圍本標(biao)準(zhun)規(gui)定了石油(you)裂化用(yong)無(wu)縫(feng)(feng)鋼(gang)管(guan)(guan)(guan)(guan)的分類、代號(hao)、尺寸(cun)、外形、重量、技術要求、試驗(yan)方法(fa)、檢驗(yan)規(gui)則、包裝、標(biao)志和(he)(he)質量證(zheng)明書。本標(biao)準(zhun)適用(yong)于石油(you)化工用(yong)爐管(guan)(guan)(guan)(guan)、熱交(jiao)換(huan)器(qi)管(guan)(guan)(guan)(guan)和(he)(he)壓力管(guan)(guan)(guan)(guan)道用(yong)不銹鋼(gang)無(wu)縫(feng)(feng)鋼(gang)管(guan)(guan)(guan)(guan)。二、規(gui)范(fan)性引用(yong)文件下列...