礦用(yong)U型(xing)鋼(gang)支(zhi)(zhi)(zhi)架(jia)(jia)U型(xing)鋼(gang)支(zhi)(zhi)(zhi)架(jia)(jia)規格(ge):礦用(yong)U型(xing)鋼(gang)支(zhi)(zhi)(zhi)架(jia)(jia),U型(xing)鋼(gang)支(zhi)(zhi)(zhi)架(jia)(jia),25U型(xing)鋼(gang)支(zhi)(zhi)(zhi)架(jia)(jia),29U型(xing)鋼(gang)支(zhi)(zhi)(zhi)架(jia)(jia),36U型(xing)鋼(gang)支(zhi)(zhi)(zhi)架(jia)(jia),礦用(yong)支(zhi)(zhi)(zhi)撐鋼(gang);主要用(yong)于礦井(jing)巷道、礦井(jing)斜巷、礦井(jing)平硐支(zhi)(zhi)(zhi)護(hu)等;