礦(kuang)用(yong)U型(xing)(xing)鋼(gang)支(zhi)架(jia)(jia)U型(xing)(xing)鋼(gang)支(zhi)架(jia)(jia)規格:礦(kuang)用(yong)U型(xing)(xing)鋼(gang)支(zhi)架(jia)(jia),U型(xing)(xing)鋼(gang)支(zhi)架(jia)(jia),25U型(xing)(xing)鋼(gang)支(zhi)架(jia)(jia),29U型(xing)(xing)鋼(gang)支(zhi)架(jia)(jia),36U型(xing)(xing)鋼(gang)支(zhi)架(jia)(jia),礦(kuang)用(yong)支(zhi)撐(cheng)鋼(gang);主要用(yong)于(yu)礦(kuang)井巷道、礦(kuang)井斜(xie)巷、礦(kuang)井平(ping)硐(dong)支(zhi)護等;