短語詞組短語rotproof finish 防腐加工Polypropylene pipage rotproof primer 聚丙烯管道防腐底漆Rotproof coating for pipage 輸送管防腐涂料Rotproof coating for metal 金屬防腐涂料Rotproof paint for shipping 船舶防腐漆Rotproof coating for underground pipeline 埋地管道重防腐涂料 返回 rotproof