As a pipe jacking trenchless underground pipeline construction method, without land, without affecting the pavement structure, and it is also convenient to cross roads, railways, buildings, rivers and so on laying underground pipelines. It has little influence on the traffic and environment, the excavation is less, and the mechanization degree can be adapted to the special conditions. It is considered as a kind of modern underground pipe laying method. D=400~3500mm Nude packing for container loading
