rotary pp jelly soft tube blow molding machine, also known as hollow blow molding, is a rapidly developing plastic processing method. The tubular plastic parison obtained by extrusion or Toys Automatic rotary pp Hdpe Plastic jelly soft tube blow molding machine of thermoplastic resin is placed in a split mold while it is hot (or heated to a softened state), and compressed air is introduced into the parison immediately after closing the mold to blow the plastic parison. It expands and sticks to the inner wall of the mold. After cooling and demoulding, various hollow products are obtained.