New type environmental protection is a new type of high strength SMC molding cover covers, use of advanced technology and equipment for molding, tested by the State construction engineering quality supervision and inspection center of Ministry of construction, heavy duty covers more than the bearing ability of 400KN, far exceeding the 240KN national standards.
While national glass quantity direct examination Center, anti-aging index far exceeds national standards, service life is longer than that of cast iron manhole covers more than 5-10 years, its performance meets and exceeds international requirements for similar products, is intended to replace other covers replacement products, widely used in municipal services, pipelines, access roads, electricity, water and other projects.
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