3963: 产品细节图：[展示JW颗粒状干冰的图片] 产品性能：小颗粒状干冰，冷却效果好，挥发慢。 用材：高质量二氧化碳制成。 参数表： 型号：JW-1kg-S-20kg 颗粒大小：小颗粒 重量：20kg 型号：JW-1kg-S-20kg 用途：常用于食品保鲜、冷链运输、舞台特效等领域。 包装：密封包装，确保干冰质量。 使用说明：使用时需注意防护，避免直接接触皮肤。 售后服务：提供优质售后服务，如有问题及时解决。 Product Details Image: [Show the picture of JW granular dry ice] Product Performance: Small granular dry ice has good cooling effect and slow evaporation. Materials Used: Made of high-quality carbon dioxide. Parameter Table: Model: JW-1kg-S-20kg Particle Size: Small Particle Weight: 20kg Model: JW-1kg-S-20kg Usage: Commonly used in food preservation, cold chain transportation, stage special effects and other fields. Packaging: Sealed packaging to ensure the quality of dry ice. Instructions for Use: Pay attention to protection when using it to avoid direct contact with the skin. After-sales Service: Provide high-quality after-sales service and solve problems in time if any. 3964 - 3966: 与3963类似，不同之处在于重量分别为100kg、200kg、500kg。 Similar to 3963, the difference is that the weights are 100kg, 200kg, and 500kg respectively.