The manufacturing process of composite manhole covers and frame includes: pulping, premixing, glass fiber filling, impregnation, calendering and other manufacturing processes.

SMC composite manhole cover, also known as FRP composite manhole cover, is made of prefabricated SMC sheet molding compound as a material in a steel mold through high temperature and high pressure molding.

You know how to decide the rated load of manhole covers in different positions

According to EN124-5 2015 standard and customer requirements, we can customize high-cost products that meet the requirements of customer use scenarios and rated load, and customize the design to satisfy customers.