Laboratory rubber stopper
For example, the M35 Green neoprene stopper is for chemical resistance.For food fermentation, M18 white natural gum is preferred.For high temperature application, red or white silicone rubber stoppers should be used.Rubber bungs can have one or more hole(s) for plugging in tubes depending on the specification of the procedures.To prevent the liquid chemical leaks or escape the container, the rubber bung should fit tightly to the container's opening; the dimension of the rubber bung is of concern.
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