It has the function of fluid conveying, cutting off and circulation. It can be used in building fire facilities, water works, sewage treatment plants, etc.
1. Good material, economical and durable, waterproof and heat insulation. 2. High elasticity and viscoelasticity. 3. Good resistance to high temperature, acid and alkali, and light. 4. No sliding parts, easy to maintain. 5. Small quality, easy installation and disassembly. 6. Environmental protection and practical, easy to operate.
1000 pieces: 15-20 days; > 1000 pieces: 35-50 days