① Carry on the metal clad the work piece and the screw to guarantee that the surface does not have the impurity completely
② Carries on the superficial bridging painting level
1. The screw surface treatment equipment comprehensive clearance, the cleaning up clean does not contain other different materials
2. Treating tank and centrifugal blue replacement handling equipment.
3. Completes after medium processing, the parent metal, carries on the superficial painting work.
The procedure is as follows:
A. soak , off center , political line, bridging, half-finished product
B. Is redundant the above work, namely end product