康宁corning耗材 273-20S Samco 1.7mL B/B-PET? 滴管(血库), 灭菌, 20/包 LSP Samco 500

康宁corning耗材 273-20S Samco 1.7mL B/B-PET? 滴管(血库), 灭菌, 20/包 LSP Samco 500 4000 CS