The painting protection process and prime coating with oil for steel plate were discussed.Pretreatment and Powder Spraying of Galvanized Plain Sheet是什么意思_The painting protection process and prime coating with oil for steel plate were discussed.Pretreatment and Powder Spraying of Galvanized Plain Sheet在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句