前处理就是对铁板、钢板、镀锌板等金属的表面进行清洗、化学处理而使底材易于电泳涂装，从而得到所需的防腐蚀涂层。
Pretreatment is a process which cleans and phosphatizes the surface of steel to get good ED film for good anticorrosion.
前处理就是对铁板、钢板、镀锌板等金属的表面进行清洗、化学处理而使底材易于电泳涂装，从而得到所需的防腐蚀涂层。
Pretreatment is a process which cleans and phosphatizes the surface of steel to get good ED film for good anticorrosion.
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