礦用(yong)U型(xing)鋼(gang)支(zhi)架(jia)(jia)(jia)U型(xing)鋼(gang)支(zhi)架(jia)(jia)(jia)規格(ge):礦用(yong)U型(xing)鋼(gang)支(zhi)架(jia)(jia)(jia),U型(xing)鋼(gang)支(zhi)架(jia)(jia)(jia),25U型(xing)鋼(gang)支(zhi)架(jia)(jia)(jia),29U型(xing)鋼(gang)支(zhi)架(jia)(jia)(jia),36U型(xing)鋼(gang)支(zhi)架(jia)(jia)(jia),礦用(yong)支(zhi)撐鋼(gang);主要用(yong)于礦井巷(xiang)道、礦井斜巷(xiang)、礦井平硐支(zhi)護等;