... containing over 30% pvc,tread puffing toy ,water bend,ect. Plastic welding machine which adopts high frequency heating ,mainly applied in ... 30% pvc,tread puffing toy ,water bend, large rubber cushion, automobile seat cushion, automobile door sheet, carpet,and so on. Principal features ... and reliable. meanwhile ,we can design the different power HF plastic welding machine according clients'product.