Moulding Board -typed bench machine pumps the concrete lining, which is a lining method tunnel construction unit commonly adopts it at present.
模板台车泵送混凝土村砌是目前公路隧道施工单位普遍采用的衬砌方法。
Moulding Board -typed bench machine pumps the concrete lining, which is a lining method tunnel construction unit commonly adopts it at present.
模板台车泵送混凝土村砌是目前公路隧道施工单位普遍采用的衬砌方法。
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