Borosilicaatglas, transparant, met kleine diameter, luchtbelvrij, hittebestendig, cilindrisch, recht model.

This product is made of high borosilicate glass, which is resistant to high temperatures and can be filled with boiling water without the risk of the glass exploding. This glass is used for tea sets, teacups, and other products. It has high transparency, high toughness, and is free from air bubbles, lines, or flow lines. The thickness at the mouth is consistent with the thickness in the middle of the bottle.