RCB50-71/90S High-speed vacuum forming machine,Up and down double times heating. USERC series forming machine is mainly suitable for curled sheet of PVC,PS,expansion PSP,PP,PET,biodegraded PP,etc.,to make all kinds of thin & open container through vacuum forming process,for example,many kinds of disposable lunch box,fast food plate,instant noodle bowl,western food box,inner lining of food packing ...