礦(kuang)用(yong)U型(xing)(xing)(xing)鋼(gang)(gang)(gang)支(zhi)(zhi)(zhi)(zhi)架(jia)(jia)U型(xing)(xing)(xing)鋼(gang)(gang)(gang)支(zhi)(zhi)(zhi)(zhi)架(jia)(jia)規格:礦(kuang)用(yong)U型(xing)(xing)(xing)鋼(gang)(gang)(gang)支(zhi)(zhi)(zhi)(zhi)架(jia)(jia),U型(xing)(xing)(xing)鋼(gang)(gang)(gang)支(zhi)(zhi)(zhi)(zhi)架(jia)(jia),25U型(xing)(xing)(xing)鋼(gang)(gang)(gang)支(zhi)(zhi)(zhi)(zhi)架(jia)(jia),29U型(xing)(xing)(xing)鋼(gang)(gang)(gang)支(zhi)(zhi)(zhi)(zhi)架(jia)(jia),36U型(xing)(xing)(xing)鋼(gang)(gang)(gang)支(zhi)(zhi)(zhi)(zhi)架(jia)(jia),礦(kuang)用(yong)支(zhi)(zhi)(zhi)(zhi)撐鋼(gang)(gang)(gang);主(zhu)要(yao)用(yong)于(yu)礦(kuang)井巷道(dao)、礦(kuang)井斜巷、礦(kuang)井平硐支(zhi)(zhi)(zhi)(zhi)護等;