I would like to know the safety awareness of the tunnel lining formwork trolley Prawns to help answer oh
No special requirements, not special equipmentFirst of all, it must be the track, the sleeper to the sleeper rail
Two during the 1 excavation of earthwork calculating boundary line is important??? 2 measuring points as far as the standard
Second, check the obstacles before starting, the process of attention to observe at any timeWire, wind
