Woy Glass Trade Co., Ltd
Autonomous professional production High borosilicate glass products.
borosilicate glass as material which is heat resistant,high transparency and light weight.
easy to clean and does not adsorbed flavor
High quality and rapid delivery
Family / Friends party / Christmas / Birthday Event & Party Supplies, Other Festive & Party Supplies /Fashion gift
Caution: There is a vent/hole at the bottom of all hand-made Double Wall Glass Cups, this vent is sealed by silicon sealant.
It is not a defect, and it is a simple way to distinguish Hand-made double wall glass cup and Machine-made double wall glass cup.
This vent/hole is required in hand-made mouth blown glass production.