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