Functions and Uses：
1. It is a surface treatment free of phosphorus and the waste water can be discharged just after a simple treatment.
2. It can be applied to all metal pieces except the magnesium substrate to disperse, emulsify, and saponification a variety of mineral salts and organisms,
3. Applicable materials: iron, copper, aluminum, zinc and other alloys

Operating Components：
Steel pieces：
    Concentration           60~75 g/L       
    temperature              66~96℃      
    time                            1~5min        
Copper, Bronze, Aluminum：
    Concentration          60~75g/L
    Temperature            60~71℃
    Time                          3~5min
Zinc Alloy：
    Concentration          80~100g/L
    Temperature            68~72℃
    Time                          6~10min