礦用(yong)U型(xing)(xing)鋼支(zhi)(zhi)(zhi)架(jia)U型(xing)(xing)鋼支(zhi)(zhi)(zhi)架(jia)規(gui)格:礦用(yong)U型(xing)(xing)鋼支(zhi)(zhi)(zhi)架(jia),U型(xing)(xing)鋼支(zhi)(zhi)(zhi)架(jia),25U型(xing)(xing)鋼支(zhi)(zhi)(zhi)架(jia),29U型(xing)(xing)鋼支(zhi)(zhi)(zhi)架(jia),36U型(xing)(xing)鋼支(zhi)(zhi)(zhi)架(jia),礦用(yong)支(zhi)(zhi)(zhi)撐(cheng)鋼; U型(xing)(xing)鋼支(zhi)(zhi)(zhi)架(jia)主要用(yong)途:主要用(yong)于礦井巷(xiang)道、礦井斜(xie)巷(xiang)、礦井平硐支(zhi)(zhi)(zhi)護等;