礦(kuang)用(yong)(yong)U型(xing)鋼(gang)支(zhi)(zhi)架U型(xing)鋼(gang)支(zhi)(zhi)架規格:礦(kuang)用(yong)(yong)U型(xing)鋼(gang)支(zhi)(zhi)架,U型(xing)鋼(gang)支(zhi)(zhi)架,25U型(xing)鋼(gang)支(zhi)(zhi)架,29U型(xing)鋼(gang)支(zhi)(zhi)架,36U型(xing)鋼(gang)支(zhi)(zhi)架,礦(kuang)用(yong)(yong)支(zhi)(zhi)撐鋼(gang);主(zhu)要用(yong)(yong)于礦(kuang)井巷(xiang)道、礦(kuang)井斜巷(xiang)、礦(kuang)井平硐支(zhi)(zhi)護(hu)等;