礦(kuang)用(yong)(yong)U型(xing)鋼(gang)支(zhi)(zhi)(zhi)架(jia)U型(xing)鋼(gang)支(zhi)(zhi)(zhi)架(jia)規格(ge):礦(kuang)用(yong)(yong)U型(xing)鋼(gang)支(zhi)(zhi)(zhi)架(jia),U型(xing)鋼(gang)支(zhi)(zhi)(zhi)架(jia),25U型(xing)鋼(gang)支(zhi)(zhi)(zhi)架(jia),29U型(xing)鋼(gang)支(zhi)(zhi)(zhi)架(jia),36U型(xing)鋼(gang)支(zhi)(zhi)(zhi)架(jia),礦(kuang)用(yong)(yong)支(zhi)(zhi)(zhi)撐(cheng)鋼(gang);主要用(yong)(yong)于礦(kuang)井(jing)巷道、礦(kuang)井(jing)斜巷、礦(kuang)井(jing)平硐支(zhi)(zhi)(zhi)護等;