礦(kuang)用(yong)U型(xing)(xing)(xing)鋼支(zhi)架(jia)(jia)U型(xing)(xing)(xing)鋼支(zhi)架(jia)(jia)規格(ge):礦(kuang)用(yong)U型(xing)(xing)(xing)鋼支(zhi)架(jia)(jia),U型(xing)(xing)(xing)鋼支(zhi)架(jia)(jia),25U型(xing)(xing)(xing)鋼支(zhi)架(jia)(jia),29U型(xing)(xing)(xing)鋼支(zhi)架(jia)(jia),36U型(xing)(xing)(xing)鋼支(zhi)架(jia)(jia),礦(kuang)用(yong)支(zhi)撐鋼;主要(yao)用(yong)于(yu)礦(kuang)井(jing)巷道、礦(kuang)井(jing)斜巷、礦(kuang)井(jing)平硐支(zhi)護等;