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By certification 
When rubber products are moulded, the cohesion of elastomer can not be eliminated after high pressure pressing. When the rubber products are moulded out, very unstable shrinkage (the shrinkage rate of rubber varies according to different kinds of rubber) often occurs. It must take a period of time before they can be gently stabilized. Therefore, at the beginning of rubber product design, no matter the formulation or the mould, it is necessary to carefully calculate the coordination. If not, the size of the product will be unstable and the quality of the product will be low.
Rubber is an elastomer of thermosolubility, while plastics are thermosolubility and cold solidity. The temperature range of rubber forming and curing differs considerably due to the main sulfide species, and may even be affected by climate change and indoor temperature and humidity. Therefore, the production conditions of rubber products need to be adjusted appropriately at any time. If not, there may be differences in product quality.
Origin: Hebei, China
Type: Rubber Ring
Shape: Round
Material: PVC
Product advantages:
1. Good surface gloss
2. Excellent resilience
3. Excellent sealing effect
4. Excellent weather resistance
5. Good material stability
6. Customizable non-standard models
7. Complete models, standing stock
8. Mature technology and stable quality
9. Green Environmental Protection
10. Meeting the Needs of Sustainable Development
http://www.heavytruckbus.com/
