What is the diffronce between themosetting plastics and themosetting plastics plastics?

It seems there is a typographical error in your question; you likely meant to ask about the difference between thermoplastics and thermosetting plastics. Thermoplastics are materials that become pliable or moldable upon heating and can be remolded multiple times without undergoing any significant chemical change. In contrast, thermosetting plastics harden permanently after being shaped and cannot be remolded upon reheating. This fundamental difference affects their applications, processing, and properties in various industries.