No matter what industry is now demand for trench cover mold is a great power cover mold releasing, the manufacturers have continued to increase, so much the face of this competitive pressure, companies want long-term based on the market, only production High-quality products is the truth. What is it good quality cast it a theft: the? Composite trench cover using polymer chemical composites. Molded from high temperatures, because there is no secondary use value, with good natural anti-theft features. Second, corrosion-resistant, anti-aging: Composite trench cover detection by the National Chemical Building Materials Test Center, with a significant acid, corrosion resistance electricity cover mold, anti-aging index reached three or more, longer service life. Third, security: a composite trench cover using a steel frame, even in the face of destructive power load cover mold design, do not crush, with anti-fall features. Carrying capacity and other performance indicators by the State Construction Engineering Quality Supervision and Inspection Center, are in line with the Ministry of Construction CJ / T121-2000 standards. National grid electricity cover mold, mold on productivity and ease of operation, the labor intensity have a greater impact on the plastic cover mold of the molding process. When mass production, minimize clamping and pickup during manual operation, the use of automatic clamping and automatic ejection mechanism. We should be able to guarantee a fully automated production of plastic parts fall off from the mold. When the production of small quantities of plastic parts, in order to reduce the cost of plastic parts tooling costs in proportion, should be adopted in a reasonable and simple structure of the mold.