人孔M3-12B施工照片Post published:2019-12-17Post category:施工照片(大潭新林口)M3-12B人孔鋼板樁擋土M3-12B人孔開挖及支撐M3-12B人孔埋設(鋪碎石)M3-12B人孔埋設(水平樑回填砂)M3-12B人孔埋設(人孔組裝)