test tube: neutral glass or borosilicate 3.3 glass. from 6*40 to 30*250. Scale lines or Logo can be printed.
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TAIXING HUAXIA INSTRUMENTATION FACTORYVIP会员第13年
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test tube: neutral glass or borosilicate 3.3 glass. from 6*40 to 30*250. Scale lines or Logo can be printed.