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6 Pcs Lab Watch Glass Beaker Cover Set,1 Set Smooth Edges…

【Multi-Functions】They not only can be used for vaporizing liquid, but also can be used as a lid for other chemical containers. note: cannot be heated directly.

6 Pcs Lab Watch Glass Beaker Cover Set,1 Set Smooth Edges…

【Multi-Functions】They not only can be used for vaporizing liquid, but also can be used as a lid for other chemical containers. note: cannot be heated directly.