hey all,
id like to know more about using a vial and how to stick the needle in it.
most are plastic, so you stick the needle in and draw out solution. but then you have a hole in it? and for rubber stoppers too, wont you have a hole in them too after stickin needle through? do you just "re-use" the hole for future needles?
i usually used amps all.
future thanks for answers!


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