Borosilicate 3.3 glass, with spout.
Heavy duty beakers have better mechanical stability than the standard products due to thicker walls. The reinforced rims increase shock resistance and reduce the risk of breakage. Due to the increased wall thickness resistance against rapid temperature changes is not as
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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