片语
Conversion Coating Colorless转化膜无色
cerium salt conversion coating铈盐转化膜
chemical conversion coating detail化学变化保护层
chemical conversion coatingconversion coating化学氧化膜
REM conversion coating稀土转化膜
phosphate chemical conversion coating磷酸盐化学转化膜
Phosphate conversion coating磷酸盐处理
Chemical Conversion Coating化学处理膜;[化工] 化学转变护膜;[冶] 化学转化镀层
phytic acid conversion coating植酸转化膜