礦用(yong)U型鋼(gang)(gang)支(zhi)(zhi)架U型鋼(gang)(gang)支(zhi)(zhi)架規格:礦用(yong)U型鋼(gang)(gang)支(zhi)(zhi)架,U型鋼(gang)(gang)支(zhi)(zhi)架,25U型鋼(gang)(gang)支(zhi)(zhi)架,29U型鋼(gang)(gang)支(zhi)(zhi)架,36U型鋼(gang)(gang)支(zhi)(zhi)架,礦用(yong)支(zhi)(zhi)撐鋼(gang)(gang);主要(yao)用(yong)于礦井(jing)巷(xiang)道、礦井(jing)斜巷(xiang)、礦井(jing)平硐支(zhi)(zhi)護等;