Complex level 4

1. Material: SPCC

2. Surface treatment: Zinc plating (12 µm )

3. Process: Punching & Stamping — Tapping —Sprout Holes — Riveting — Zinc plating

4. Feature description:

(1) Can pass 72H Salt spraying testing at least;

(2) Size is big as 1600*500 mm;

(3) Structure is complex, processes are finished by 10 sets of mold;

(4) After variety of manufacturing processes, final surface are nice, no scratch, no stamp or bumps marks.