短語詞組短語chemical conversion coatingconversion coating 化學(xué)氧化膜;化成皮膜chemical conversion coating detail 化學(xué)變化保護(hù)層phosphate chemical conversion coating 磷酸鹽化學(xué)轉(zhuǎn)化膜chrome -free chemical conversion coating 無鉻化學(xué)轉(zhuǎn)化 返回 chemical conversion coating