Powder coating equipment is the use of electrostatic plastic powder coating in cans on weld, oven after heating powder melting and drying in the weld is formed on a plastic protective film (polyester or epoxy resin). Due to powder in spray shí using electrostatic adsorption of principle can according to weld of specific shape completely, and uniform to covered in weld shàng of level combines surface, so can is good of protection weld not by content real of corrosion; while, due to resin powder on various chemical solvent and the food within of sulfur, and acid, and protein are has is high of resistance corrosion sex, makes powder spray applies yú various different content real; and because powder spray hòu extra of powder used cycle recycling, and again using of principle, makes powder utilization high, Is the most ideal choice seam protection, is currently on the market with the highest quality canning equipment.