磷化处理常用于提高钢铁件的耐蚀性。
Phosphating process has usually been adopted to improve the corrosion resistance of iron and steel.
钢铁件上薄层亮镍的高孔隙率必然带来低的抗蚀性。
The corrosion resistance of high porosity is very low on the thin bright nickel plating for steel and iron works.
针对生产实践，提出了一种铝合金及钢铁件化学镀镍配方。
An applied formula of electroless ni plating for aluminium alloy and steel was developed according to production practice.
应用推荐