... frequency welding 3)ISO9001:2008 and CE 4)efficient green material high frequency welding machine Descirption Double -Head high - ... leather hot stamping, brand, stationery, vamp embossing, raincoat, umbrella, inflatable toys, purse handbag, leather strap, album and CD diso casing ... Put product on mould→ clamp the product→ heat the material→ seal material→ cool the product→ loosen the product→ take the ...