It can be divided into thermoplastic polyethylene and thermosetting glass fiber reinforced plastic.
The processing of thermoplastic materials generally adopts molding processes such as injection molding, rotational molding, and blow molding. The molding process of FRP is divided into molding, spraying, and hand lay-up.
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.
All of our Composite manhole cover, Round manhole cover, ∅900mm Round manhole cover with inspection hole,Square manhole cover ,Rectangular manhole cover,gully gratings and frames, rain gratings, inspection Chambers, recessed access covers, Bridge Drainage and Tank Sumps etc are made from composite SMC (Sheet Molding Compound).The material has good fatigue resistance and long service life.
Manufacturing process: Under the condition of high temperature and high pressure, with large hydraulic equipment one-time molding, without any steel reinforced material.
Meeting the standards of EN124:1994 and Australian Standard of AS3996-2006.
SMC is ideal for large structural components due to its high strength-to-weight ratio,A typical weight reduction of 25% is achieved at similar strength to steel.
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