康宁corning耗材 274-20S Samco 4.8mL B/B-PET? 滴管(血库), 灭菌, 刻度标出 2mL, 20/包 LSP Samco 500

康宁corning耗材 274-20S Samco 4.8mL B/B-PET? 滴管(血库), 灭菌, 刻度标出 2mL, 20/包 LSP Samco 500 4000 CS