Shandong Zetao Composite Materials Co.,Ltd.is a professional manhole cover manufacturer integr-ating research and development,production and sales of composite materials.The company mainly pro-duces composite manhole cover,ditch cover,cable ditch cover,resingutter,cable bracket,warning signs,marking piles,guardrail,gutter and other eight series,more than 100 kinds of products.Products are widely used in municipal construction,real estatedevelopment,garden,energy,power,communication,intelligent transportation and other fields.The series of products with high strength,high hardness,light weight,corrosion resistance,anti-aging,high temperature resistance,beautifulanti-theft and other advantages by the national authority department testing,the indicators have reached the national latest standard GB/T23858-2009,favored by the majority of users.