Plastic Composite Sewer Cover

The Composite Plastic Sewer Cover With the Following Strength : Technical Specification of SMC manhole cover : Materials:SMC(Sheet Moulding Compound)a fibre-reinforced material,which consists primarily of the thermoset resin,unsaturated and continuous non-alkali glass fibres and calcium,poly-styrene as fillers,which is to save other non-renewable resources. Feature: 1.Non-recycle value for anti-theft. 2.Acid,alkali and chemical corrosion,impact resistant,anti-rust,weather ability,insulating,durable(30 years),locking option.Anti-abrasion:fibreglass contact above 28%,when damage,no holistic hole ,avoid sudden accident accident,use the superfine calcium carbonate,good density. 3.Excellent anti-pressure capability:no hole on the surface amd no damage of the unlock hole.Uses the new raw material, and the quality is stable. 4.Weight:just 1/3 of the cast iron one,and the 1/2 of the BMC with steel one.Convenient for transport,security check,install,open and rush-repair to reduce work intensity. 5. Apperance:Physical appearance to be nice ,smooth,good elastic curve,no distort,easy to open.The cover should not be sprayed on surface but the color must be homogeneous in mixing while casting .Uniquemulti-directional slip resistant tread pattern.Low noise and rebounding free when car roll on.Compass range of composite access covers achieved a market leading skid resistence value of 89, when tested by the Materials Laboratory of Devon Country Council. 6.Envirinmental protection,energy saving:pollution-free,the entire process of producing no need massive heat energies,electrical energy and water resources. 7.Perfact decoration effect:producing the color match the ground according to the customers demand. 8.Carrying ability:no steel,the load bearing capacity of the whole cover will be up to 25-60 ton based on size.Complies with requirements of EN124:A15,B125,C250,D400. 9.Wafery edge design,can match the cast iron frame perfect,suit for old city rebuilding.