Please move the manhole cover away .请将人孔盖移开。How about that manhole In the courtyard. You been down there?那么广场下面的通道呢? 你下去过 吗 ?Stainless steel bolts and nuts shall be tightened on manhole covers.人孔盖使用不锈钢螺栓和螺母拧紧....
Please move the manhole cover away .请将人孔盖移开。Stainless steel bolts and nuts shall be tightened on manhole covers.人孔盖使用不锈钢螺栓和螺母拧紧.Debus turn head in the manhole 2 to have equipments smoothly entered.在人井2中,将弯头卸下,便于设备进入.How ...