Conform To The Popularity Manufacture's Roof Drain Advantage: Meet Customer's Small Batch And Personalized Requirments. Material: Cast Iron Why Choose Us: 1. 25+ Years' Experience In Cast Iron Drainage Products Production 2. One Automatic Production Line Exclusive For Cast Iron Drainage Products 3. Li Has QC Manager Approval And He Has Strict Requirements For Product Quality Our Advantage: Supply Full Set Roof Drainage And Floor Drainage Products In 1 Stop. Include Cast Iron Soil Pipe And Fittings, Flexible Coupling, Heavy-Duty Coupling, Roof Drain, Roof Outlet, Retrofit Roof Drain, Floor Drain, Area Drain, Floor Sink, Downspout Boots, Downspout Nozzle And Flange, Fasteners, Plumbing Hangers, Riser Clamps, Deck Screws, Stress Plates And Reciprocating Saw Blades.