礦(kuang)用U型(xing)(xing)(xing)鋼(gang)(gang)支架(jia)(jia)U型(xing)(xing)(xing)鋼(gang)(gang)支架(jia)(jia)規格:礦(kuang)用U型(xing)(xing)(xing)鋼(gang)(gang)支架(jia)(jia),U型(xing)(xing)(xing)鋼(gang)(gang)支架(jia)(jia),25U型(xing)(xing)(xing)鋼(gang)(gang)支架(jia)(jia),29U型(xing)(xing)(xing)鋼(gang)(gang)支架(jia)(jia),36U型(xing)(xing)(xing)鋼(gang)(gang)支架(jia)(jia),礦(kuang)用支撐鋼(gang)(gang); U型(xing)(xing)(xing)鋼(gang)(gang)支架(jia)(jia)主要用途:主要用于礦(kuang)井巷道(dao)、礦(kuang)井斜(xie)巷、礦(kuang)井平硐支護等;