礦用U型(xing)(xing)鋼(gang)支(zhi)(zhi)架U型(xing)(xing)鋼(gang)支(zhi)(zhi)架規格:礦用U型(xing)(xing)鋼(gang)支(zhi)(zhi)架,U型(xing)(xing)鋼(gang)支(zhi)(zhi)架,25U型(xing)(xing)鋼(gang)支(zhi)(zhi)架,29U型(xing)(xing)鋼(gang)支(zhi)(zhi)架,36U型(xing)(xing)鋼(gang)支(zhi)(zhi)架,礦用支(zhi)(zhi)撐鋼(gang);主要用于礦井巷(xiang)道(dao)、礦井斜(xie)巷(xiang)、礦井平(ping)硐支(zhi)(zhi)護等;