Speaking of car repair paint, is about 1925 years ago, is the natural resin of enamel, after using the cellulose nitrate, medium oil alkyd resin coating, spraying construction technology to replace brush construction in 1940. Solvent a two-component, polyurethane coating system is about to enter the market in 1970, car repair paint coating has become the dominant resin system, and now, according to the development trend i
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