... component Strong output CE certific CE certificate 4KW double mould high frequency sealing machine for PVC About the roduct 1. Spark ... device With Special electronic circuit,when sparks occur,the machine can cut the high frequency,reduce the damage.Also, ... of application Leather bags, handbags, beach bag, stationery, nameplates, blowing toys, shoes material, water bed, carpet embossing, car seat covers ...