ガラス瓶の作り方 ?
Raw material & melting process: The main material of glass are quartz sand, soda ash, and limestone, these materials need to undergo crushing, de-ironing, and drying to ensure uniform particles and less than 0.1% impurities. And then all these raw materials need to be mixed, and fed into a furnace, melting at a high temperature of 1500-1600°C […]