Centrifuge tube is a disposable laboratory consumable made of polymer polypropylene (PP) material, which is used for preparing, mixing, centrifuging or storing solid or liquid samples or reagents. In biological experiments, the suspension of biological samples will be held in the centrifuge tube, and the centrifuge machine will generate centrifugal force by high-speed rotation, which will make the tiny particles (e.g., cell organelles, precipitates of biological molecules, etc.) suspended inside the tube to settle at a certain speed, so that it can be separated from the solution. The centrifuge tubes are mainly divided into large capacity centrifuge tubes (250mL, 500mL), conventional centrifuge tubes (15mL, 25mL, 50mL), and micro centrifuge tubes (0.6mL, 1.5mL, 2.0mL). The large capacity centrifuge tube is the centrifugal choice for large capacity cell collection, pelleting and protein purification; the conventional centrifuge tube is mainly used for centrifugal collection of cells and biological macro molecules, photosensitive samples and storage of special chemiluminescent reagents; the micro centrifuge tube needs to be used in conjunction with micro centrifuges for micro reagents separation, Sample preparation and storage. Advantage: • Wall thickness is uniform, the maximum centrifugal force of 1.5mL and 2.0mL micro centrifugal tubes can reach 24000xg, and that of 15mL, 25mL and 50mL conventional centrifugal tubes can reach 12000xg, high-speed centrifugation without bursting the tube. • The tube body has a large white writing area. • Scale lines are clear and accurate, not easy to fall off. • Flat cap thread, sealed tightly, easy to operate with one hand. • High precision mold production, no surface coating, will not contaminate the sample. • The cover surface is frosted, easy to mark in the laboratory.