Ultra high molecular weight ( ultra high molecular weight ) composite plastic inspection cover, shuibiaoxiang, meter box, gully trap and other series products are the new high-tech products of high-tech, the first is the domestic. The product has neat appearance, smooth lines and various colors, and can be used with market color pavement, to achieve humanization of design concept. The product is the first choice of cast iron, nylon, glass fiber reinforced plastics and cement products. It can be widely used in the city government road, water supply, electricity, electricity, electricity, residential small area, park, Ming dynasty, etc. Orders. It can improve the city grade and lianghua appearance. According to the standard of urban construction industry of the people's Republic of China, the product was proved and appraised, and won the second prize of science and technology in Henan province in 2002, and obtained national patent in the same year.