and local companies are gradually rising

Polyoxymethylene (POM), also known as polyacetal, polyoxymethylene, acetal resin, etc., is a linear polymer compound with a macromolecular main chain of (CH2O)n. It has a relatively regular structure and almost no side chains. Polyformaldehyde has high stiffness and hardness, excellent comprehensive properties, and can replace aluminum, zinc, copper and other metal materials. As the polyformaldehyde…