... frequency welding Welding machines for sale 2. high frequency welding machine for PVC,PET...... ApplicationsP.V.C dual-sided suction sealing ... .V.C content of 10% or above,genuine leather, fabric embossing, etc.Such as:air blowing toys, raincoat,umbrella,stationery label ... plastics heath, shoe trademark, leather bags,handbags, toothbrush package, carpet embossing, etc.