We supply burglarproof artistic manhole covers, gully tops and tree-grilles which Are made from composite material such as glass fiber, resin, quartz, corundum & so On. Our products have the following special advantages: 1. Strictly manufactured according to ISO 9001:2000 and EN124 2. High load capacity (Max.40Ton) 3. Contain no metal, no scrap value 4. Long service life (Min.30 years) 5. Well sealed, no noise pollution or rebound 6. Good wear and corrosion resistance, never rust 7. Special Relief Sculpture on Surface with good decorative effect 8. Perfect design and rich colors individually against various needs and Requirements. Our products have obtained various kinds of certificates, including: 1. Patent certificates for new applied products Patent Number: ZL01257174.1 & ZL 02277033X Issued by China National Knowledge Property Right Bureau 2. Gold Medal at 2003''s Hong Kong International Patent Technology Fair 3. Quality System Certificate Issued by China National Imp. Exp. Commodities Inspection Corp. 4. Certificate of Recommended Products Issued by China National Construction Association of Building Engineering The Engineering Tests our products passed, including: 1. Test Report issued by National Center For Quality Supervision and Test of Building Engineering 2. Test Certificate issued by ABU DHABI region 3. Others We can supply 3 types of manhole covers against its shape: 1. Circular Cover 2. Square Cover 3. Circular cover with Square outside Four grades of load capacity are available: 1. A15 2. B125 3. C250 4. D400 Please contact us with full specification and your price concept on the items you are interested in. We are professional ,we sure our new products can enjoy good market in your city,please feel free to contact us if there any questions.