5pcs 10pcs 24/32/60/80/96 holes Double-sided plastic centrifuge tube shelf Lab PCR tube Holder 0.5/1.5/2ml centrifugal pipe rack

5pcs 10pcs 24/32/60/80/96 holes Double-sided plastic centrifuge tube shelf Lab PCR tube Holder 0.5/1.5/2ml centrifugal pipe rack

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