GB 9948-2013 石油裂化用無縫鋼管 下載
GB9948-2013石油(you)裂化用(yong)(yong)無縫鋼管 一、范(fan)(fan)圍本標(biao)準(zhun)(zhun)規定(ding)了石油(you)裂化用(yong)(yong)無縫鋼管的(de)分類、代號、尺寸(cun)、外形、重量、技術要求、試驗方法、檢驗規則、包裝、標(biao)志和質(zhi)量證(zheng)明(ming)書。本標(biao)準(zhun)(zhun)適用(yong)(yong)于石油(you)化工用(yong)(yong)爐管、熱交換器管和壓力(li)管道用(yong)(yong)不銹鋼無縫鋼管。二、規范(fan)(fan)性引用(yong)(yong)文件(jian)下列...