礦用U型(xing)(xing)鋼(gang)支(zhi)(zhi)(zhi)架(jia)U型(xing)(xing)鋼(gang)支(zhi)(zhi)(zhi)架(jia)規格:礦用U型(xing)(xing)鋼(gang)支(zhi)(zhi)(zhi)架(jia),U型(xing)(xing)鋼(gang)支(zhi)(zhi)(zhi)架(jia),25U型(xing)(xing)鋼(gang)支(zhi)(zhi)(zhi)架(jia),29U型(xing)(xing)鋼(gang)支(zhi)(zhi)(zhi)架(jia),36U型(xing)(xing)鋼(gang)支(zhi)(zhi)(zhi)架(jia),礦用支(zhi)(zhi)(zhi)撐鋼(gang);主要(yao)用于礦井(jing)巷道、礦井(jing)斜巷、礦井(jing)平硐支(zhi)(zhi)(zhi)護等;