Floor-standing Large Capacity Refrigerated Centrifuge 6-6R Bench-top Large-capacity Low-speed Centrifuge 4-5N/4-5R Middle-sized Bench-top Low Speed Centrifuge 3-5N ... TZP zirconia ceramic mini ball has good toughness, and it won't be cracked and peeled under high speed rotation and high concentration environment and its abrasion ratio is ...