康宁corning耗材 336-20S Samco 5.0mL B/B-PET?滴管, 6″, 灭菌, 20支装 LSP Samco 500

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康宁corning耗材 336-20S Samco 5.0mL B/B-PET?滴管, 6″, 灭菌, 20支装 LSP Samco 500 4000 CS