... and other fragile, high-grade products during conveyance. Quality Assurance:1. All components are high and long lifetime,some ... 3. All the products have long lifetime. 1,heat preservation2,high resilience3,water resistent4,aperture uniform5,factory direct sell6 ... used in electronic industry,medical industry,mobile industry,etcadvantages: 1, factory direct sell, complete price;2, professional engineer ...