High borosilicate glass,Lead-free, free of alkali metal oxides, commonly used in medical
utensils and baby bottles It is the purest and safest material known to come into contact with waterThe cup body is crystal clear, and the contents are clear at a glance. The characters engraved on the cup adopt high-temperature
roasting process, which will never fall off.
Alternating cold and hot without bursting High borosilicate glass can withstand a temperature difference of -20 degrees -150
degrees Rinse directly into boiling water after freezing, without bursting
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