... of chemical pretreatment,preliminary coating and fine coating on the continuous units.and it has good anticorrosion,forming,decoration.and ... power:100,000 ton one year6>Energy: Natural gas, electric, diesel oil, liquefied gas, coal,propane and so on.(pressure force: ... - level water rinsing+Water spray.8>Energy saving:exhaust gas and heat recycling.9>Extremely-high economic benefits: Prepainted steel ...