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Thick-walled ground test tube, 14/20 mouth 5ML, outer diameter*total length 19*70MM&NBSP Structure

Thick-walled ground test tube, 14/20 mouth 5ML, outer diameter*total length 19*70MM&NBSP

Thick-walled ground test tube, 14/20 mouth 5ML, outer diameter*total length 19*70MM&NBSP Supplier