礦用(yong)U型(xing)(xing)鋼支(zhi)(zhi)架(jia)(jia)U型(xing)(xing)鋼支(zhi)(zhi)架(jia)(jia)規格:礦用(yong)U型(xing)(xing)鋼支(zhi)(zhi)架(jia)(jia),U型(xing)(xing)鋼支(zhi)(zhi)架(jia)(jia),25U型(xing)(xing)鋼支(zhi)(zhi)架(jia)(jia),29U型(xing)(xing)鋼支(zhi)(zhi)架(jia)(jia),36U型(xing)(xing)鋼支(zhi)(zhi)架(jia)(jia),礦用(yong)支(zhi)(zhi)撐鋼; U型(xing)(xing)鋼支(zhi)(zhi)架(jia)(jia)主要(yao)用(yong)途(tu):主要(yao)用(yong)于礦井巷道、礦井斜巷、礦井平硐支(zhi)(zhi)護等(deng);