The high-pressured polyethylene (PEF) uses the advanced foaming technical production line, uses the most advanced scientific formula, by the high-pressured polyethylene, the burning inhibitor, the foaming agent, the crosslinking agent and so on many kinds of raw material blendings, passes through builds up densely, opens builds up becomes spongy the polyolefine through the chemistry bridging high percentage, but becomes the netted high score substructure the balanced steam bubble product, has 20, 30, 40, 45 (density) many kinds of foaming percentage serial products, in difficult to burn with the being flame-resistant performance in has 26, 28, 30, 32 oxygen index serial productses and the ordinary product separately, the product has the quite tiny completely independent bubble structure.