The material of the glass is mainly silicon dioxide. Ordinary glass is calcium silicon glass. The better is high borosilica, which is the so -called hard glass.
Ordinary wide -mouth glass is calcium silicon glass. To remind you, the lead content we usually worry about is here. Due to the cheap calcium silicon glass, the production cost is low, the medium lead content cannot be effective. one time.
Some of the high -level glass are high borosilica. The high borosilicon is almost unsuccessful, and the craftsmanship is particularly complicated, so it is much more expensive.
Post time: Apr-18-2023