professional sport bottle manufacturer

steel sport bottle manufacture start from tube shape steel material, 

2nd procedure is casting the tube into requested shape

3rd procedure, cut casted material into piece

4th procedure, handling the bottle mouth

5th procedure, bottom conjunction

6th procedure, polish and grill the bottle mouth

7th procedure, bottom polish and grill

8th procedure, side and edge polish

9nd main body polish, clean and handling

10nd procedure, painting the surface

11nd, making printing on the bottle