Glass bottles for sale generally form a liquid viscous liquid after burning and dissolving glass raw materials. To make it cool and shape, most of them use the mold blowing method, using models of various materials, such as wood, clay, metal, etc. to pre-fabricate the required molds. Pour the molten glass into the mold, and then open the mold after cooling. It is generally used for utensils that cannot be made by blowing glass. Most factories adopt this method, which can be mass-produced.
The other is the air blowing method, that is, glass blowing, which is to take out an appropriate amount of glass solution, put it on one end of the iron blowpipe, blow air while rotating it, and use scissors or pliers with skilled techniques to shape it.
