Rubber: Rubber is an organic polymer with a molecular weight of several hundred thousand. It needs to be processed through vulcanization to maintain high elasticity within the temperature range (-50～150℃). Low modulus of elasticity, 3 orders of magnitude lower than ordinary materials, large deformation, elongation can reach 1000% (less than 1% for general materials), heat is released during stretching, and elasticity increases with temperature, which is also lower than that of general materials in contrast.
TPU: Thermoplastic elastomer is the general term for tpu, which is an environmentally friendly non-toxic polymer material. The tpu material combines the advantages of the high elasticity of rubber and the processing performance of plastics. It does not require vulcanization and can be processed by a general thermoplastic molding machine. In simple terms, the thermoplastic elastomer tpu is thermoformed, using an injection molding machine, an extruder, Blow molding machine can be produced. Waste and leftover materials can be 100% recycled, which is the preferred raw material to replace pvc, rubber, and silicone, and dominate the rubber and plastic industry.
4.總括而言，犀利士是有效的壯陽藥物，可以治療陽痿問題。然而，使用時應該注意劑量和頻率，以避免不必要的副作用和病情惡化。最重要的是，與醫生保持良好的溝通，共同制定合適的治療計劃。
樂威壯的成分可能引起副作用，如頭痛、噁心、肌肉痠痛等。如果您在服用樂威壯期間出現任何不適症狀，應立即停止使用並向醫生諮詢。不要擅自增加服用量，以免對身體造成不利影響。