礦(kuang)用U型(xing)(xing)(xing)鋼(gang)(gang)(gang)支(zhi)架(jia)(jia)U型(xing)(xing)(xing)鋼(gang)(gang)(gang)支(zhi)架(jia)(jia)規格:礦(kuang)用U型(xing)(xing)(xing)鋼(gang)(gang)(gang)支(zhi)架(jia)(jia),U型(xing)(xing)(xing)鋼(gang)(gang)(gang)支(zhi)架(jia)(jia),25U型(xing)(xing)(xing)鋼(gang)(gang)(gang)支(zhi)架(jia)(jia),29U型(xing)(xing)(xing)鋼(gang)(gang)(gang)支(zhi)架(jia)(jia),36U型(xing)(xing)(xing)鋼(gang)(gang)(gang)支(zhi)架(jia)(jia),礦(kuang)用支(zhi)撐鋼(gang)(gang)(gang);主要用于礦(kuang)井(jing)巷道(dao)、礦(kuang)井(jing)斜(xie)巷、礦(kuang)井(jing)平硐(dong)支(zhi)護(hu)等;