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1, By the nticorrosion, good compression bearing , burglarproof, the high quality and the reasonable price, large quantity of ourgrey & ductileironsquare manhole cover are exported to abroad every year. 2, We also produce series of well cover, pipe fitting, grate, ball mould, argricultural machinery and so on.. 3, Our company passed ISO9001:2000 certification in 2004, regards customers demands as guide, high and new technology as basis, high-quality products as tenet, reliable credit as guarantee, and innovation, honesty, pragmatic, and dedication as business philosophy. We will provide the high-quality products and first-class service for every guest. 4,Contact way:TM ID: cn200873001Tel/Fax: 0086---310---8012765