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Borosilicate glass, grade 3.3, clear
The economical alternative for a wide range of laboratory applications. Flasks have flared rim with markings for approximate volume graduations and a white labelling area.
ISO 1773 (narrow mouth)
DIN ISO 24450 (wide mouth)
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江浙沪地区邮费 10 元，满 200 包邮 其它地区(不含港澳台)邮费 20 元，满 1000 包邮