礦用(yong)U型(xing)(xing)鋼(gang)(gang)支架U型(xing)(xing)鋼(gang)(gang)支架規格：礦用(yong)U型(xing)(xing)鋼(gang)(gang)支架，U型(xing)(xing)鋼(gang)(gang)支架，25U型(xing)(xing)鋼(gang)(gang)支架，29U型(xing)(xing)鋼(gang)(gang)支架，36U型(xing)(xing)鋼(gang)(gang)支架，礦用(yong)支撐鋼(gang)(gang)；主要(yao)用(yong)于礦井(jing)巷道、礦井(jing)斜巷、礦井(jing)平硐支護等；
