Product Details

surface size square&rectangle manhole cover

Brand Name
Place of Origin China
Model Number

Product Features


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


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