With assured quality, attentive service and reassuring customers, sanhuai has been successfully developed on the basis of agent pipe making machine and absorbing foreign advanced technology. The machine integrates machinery, electricity and gas. Compared with similar products at home and abroad, it has some advantages, such as less investment, high efficiency, low energy consumption, easy operation, stable performance and simple maintenance. The machine takes aluminum-plastic composite sheet as raw material and adopts high-frequency welding to produce composite pipes of various specifications. The products produced are welded straight and firmly.