One of them is ours absolutely new material KATCHEMID-N based on the polyamide PA-6. KATCHEMID-N represents a new constructional material, which shows a high toughness associated with corresponding rigidity. This material, which is not available on the world market yet, has excellent abrasive qualities. KATCHEMID-N approves oneself as wall's protection at transport of loose materials specially coal in mines and thermal power plants. In the tests for ballistic purposes KATCHEMID-N, also due to its impact strength, has shown excellent resistance in destruction tests with explosives. KATCHEMID-N can be used as a high-quality substitute for ultra-high-molecular-weight polyethylene. Plates (900x550 mm) and bars.