Pu rod and sheet commonly known as superior glue and spring glue, is a new synthetic material that is obtained by reacting a polymer polyol with an isocyanate and chain-linking, a plastic and rubber.Pu has chemical resistance, high elasticity, high pressure load resistance, high wear resistance, strong shock absorption, tear resistance, radiation resistance, and can maintain high in a wide range of hardness (Shore A10 to Shao D75) elasticity. Its excellent overall performance is beyond the reach of ordinary plastics and rubber.
According to the main structure of the polyurethane elastomer, PU is divided into two types: polyester type and polyether type.
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Reference answer:
1. The influence of chemical pipeline layout is passed;
2. The chemical pipeline has no product name and flow direction identification;
3. There is no protective cover for the rotating part of the pump.