1. Hot-dip zinc plate - high frequency welding (forming, sizing) - eddy current testing -- correction - hydrostatic test - finishing - surface finishing - zinc patching - saponification

2. Skim - a cleaning - second cleaning - table zinc phosphate tone -- - cleaning - pure water spray cleaning, drying

3. Organic zinc epoxy powder coating - curing - polyester colour coating - curing

Hot-dip zinc: play electrochemical protection function, from inside to the outside and steel base material to prevent rust

Zinc phosphate: enhance film and substrate adhesion

Organic zinc epoxy powder coating: excellent anti-corrosion properties and impact resistant performance

Polyester colored powder coating: uv stability, long fight dirty properties and surface from clean performance