The secondaryaluminum industry is a silver money bay.
再生铝工业是一棵长青的摇钱树。
2
Aluminum and its alloy with decorate ceramic oxide coating were developed by secondary oxidation process in sulfa-salicylic acid bath and an organic acid bath.
对铝及铝合金在磺基水杨酸槽液中及另一有机酸槽中进行二次氧化，获得了装饰效果良好的瓷质氧化膜。
3
The calcination and secondary acid leaching process were used to remove iron and aluminum in the pyrite tailings in the tests.