礦用(yong)U型(xing)(xing)(xing)鋼(gang)支(zhi)(zhi)架U型(xing)(xing)(xing)鋼(gang)支(zhi)(zhi)架規格:礦用(yong)U型(xing)(xing)(xing)鋼(gang)支(zhi)(zhi)架,U型(xing)(xing)(xing)鋼(gang)支(zhi)(zhi)架,25U型(xing)(xing)(xing)鋼(gang)支(zhi)(zhi)架,29U型(xing)(xing)(xing)鋼(gang)支(zhi)(zhi)架,36U型(xing)(xing)(xing)鋼(gang)支(zhi)(zhi)架,礦用(yong)支(zhi)(zhi)撐鋼(gang);主要(yao)用(yong)于礦井巷(xiang)道、礦井斜(xie)巷(xiang)、礦井平硐支(zhi)(zhi)護等(deng);