Functions and Uses：
1. It is a phosphorus-free surface treatment and the waste water can be discharged after simple treatment.
2. It can be used 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
Density 60~75 g/L
Copper, Bronze, Aluminum：