The main material for plastic manhole cover is one kind of Fiberglass / Glass-fiber Reinforced Polyester (FRP / GRP), with supplementary materials, such as: calcium power, poly-styrene, reinforcing steel bar and etc., the process is compression moulding method, using special steel mould, pressurized by hydraulic pressure machine with heat 180~220 Degree.
Plastic manhole cover gully gratings reinforced by reticulation steel bar, the key part under the strain specially strengthened, in the event of the inevitable external shocks it can quickly disperse the pressure impulse and guarantee safety of people and these vehicles.
Human Design: using the most popular cross-slip stripes, simple, high-quality sound for your project icing on the cake
Exterior color can be in harmony with nature, the gap with the precision, non-twisting, non-flex, not bend, so that it is all smooth sailing in front of you.
Plastic manhole cover gully gratings are prepared by using one-step Compression Molding Technology under high temperature, high pressure, with high polymerization degree and density, and have a good impact and tensile strength, with anti-wear, corrosion resistance, no rust, pollution-free, maintenance-free etc.
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| Green Color | Brown Color |
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| Yellow Color | Black Color |
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| Blue Color | Red Color |
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