The production process of glass products consists of several complex steps to ensure the quality and performance of the final product. The following is a summary of the glass production process according to the search results provided:

Glass forming method
Blow molding: This is a common glass molding method, including mechanical blow molding and hand blow molding two ways.

Pressing: This is a technique in which glass is melted and then pressed into shape.

Centrifugal rotation: This molding method involves the rotation of a glass melt under centrifugal force to form the desired shape.

Firing: In some cases, glass products need to undergo a firing process to complete their final curing and strengthening.

Annealing treatment
Annealing: The glass products after forming need to be sent to the annealing kiln for annealing treatment to balance the internal stress and prevent self-cracking.
Production process flow
Raw material preparation: First of all, we need to prepare the raw materials required for the production of glass, such as quartz sand, soda ash, etc.

Melting: The prepared raw material is heated to a high temperature to melt it into liquid glass [3].

Molding: Using the molding method mentioned above, the molten glass is molded into the desired shape and size.

Annealing: After forming, the glass products need to be annealed to eliminate internal stress and improve the durability of the product.

The above is the basic production process of glass products, and different manufacturers may adjust these steps appropriately according to the specific product needs and process characteristics.