1. Making wire drawing die: The silver lining is made by wire drawing machine, so the first step is to make wire drawing abrasives.

2. Casting plate: making different pieces of silver according to different specifications.

3. Blanking: it needs to be quenched before being put into the machine, and it will become soft and easy to handle after quenching.

4. Stretching: The silver sheet is stretched by four machines with different specifications, and finally becomes a cylindrical pure silver liner.

5. Setting: If the standard height of the pure silver liner is 16cm, we will cut off the silver pieces with excess height after making.

6. Magnesium white: Clean the silver liner with silver cloth and silver powder.

7. Assembly: insert the inner container into the cup shell by hand.

8. Test water: Every ex-factory silver liner thermos cup needs to be tested to ensure that each thermos cup does not leak water.

9. Edge-throwing: Edge-throwing treatment is needed at the joint of the cup mouth shell and the inner container to ensure high comfort when drinking water.

10. Lining grinding: The bright luster of silver is reproduced by lining grinding.

1 1. Acceptance and storage