B125 C250 D400 Sewer Manhole Cover Heavy Duty Square Shape Anti Slip Surface

Xianxian Shuangxing Cast Co.,ltd is located in the historic city of Cangzhou ,is a professional manufacturer of Ductile/Nodular Cast Iron Production. Our Manufacturing aCapacity as follow:1.Ductile/Nodular Sandy Cast Iron Manhole Cover: Invisible Manhole CoverRoundness Manhole Rings and CoverSquare/Rectangle Manhole CoverWatertight and locking Manhole manholes etc.2.Ductile/Nodular Cast Iron Frame and Grate :Rainwater GratingDrain Trench Grating ,Tree Grating , Gully Grating ,Rectangular Trench Frames&Grates End wall Grating etc.3.Catch BasinsCurb&Cutter InletsType K GratingsIron TankMeter BoxCast Iron Grids etc.With more than 20 years' of manufacturing experience, advanced production equipment and strictly implement the ISO9001 international quality inspection system, wide products series and devotion to R&D, we are ready to be your partner Ductile Cast Iron products industry.