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Pretreatment Principle
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Pretreatment Principle 
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Pretreatment Principle:

Before coating, the surface of work-pieces should be treated to achieve following:
1. Strong adhesion, promote durability;
2. Good decorative appearance;
3. Facilitate next workflow if needed;
4. There are two types of pretreatment: spraying system or soaking system;
5. The surface pretreatment concerns the quality of products directly;
6. Actual examples of pretreatment(surface treatment) engineering:

1 Pretreatment line for air-conditioners

2 Pretreatment line for aluminum panels

3 Pretreatment line for gas stove

4 Pretreatment line for barbecue stove

5 Automobile springs

6 Pretreatment line for outdoor furniture

7 Pretreatment line for inner tank of electro rice cooker

8 Pretreatment line of tunnel type for barbecue stove

9 Pretreatment line for canopy of electric heater

10 Pretreatment line for steel inner panels of air-conditioners

11 Pretreatment line for home appliances

12 Pretreatment line for bicycles

13 Pretreatment line for desulfurization panels.