1. This machine adopts the way of pushing forward, has the functions which change the diameter automatically.
2. It can weld the reinforcing frame of cement pipe with the ends of socket and flat mouth type. Also the socket angle is adjustable.
3. The electrical apparatus system adopts the digital control and frequency conversion speed adjustment. So that the precision of the complete machine have been improved.
4. It is proved through using that this machine is steady and reliable in performance, accurate and swift in changing diameter, easy to operate and high in production efficiency.
5. It is the outstanding model in the domestic similar equipment at present and it is the best choice of the manufacturer of drainage pipeline.