Four, steel structure material: polystyrene, extruded board, polyurethane board, glass cotton lap. Felt.

The rigid polyurethane excellent performance, with many countries in Europe and America, widely used in the roof of the building, the wall, ceiling, floor, door to wait as thermal insulation material.

Shin plate protector is injected with high modulus PU for a high level of impact and abrasion protection.