A .脱脂→水冲洗→去氢→水冲洗→中和→水冲洗→除锈
B .除锈→水冲洗→脱脂→水冲洗→中和→水冲洗→去氢
C .水冲洗→脱脂→除锈→水冲洗→中和→水冲洗→去氢
D .脱脂→水冲洗→除锈→水冲洗→中和→水冲洗→去氢