Material: Aluminum and Cast Iron   Include: Aluminum Dome, Cast Iron Clamp Ring, Cast Iron Bottom   Outlet Type: No-Hub, Push On(Common), Thread   Outlet Diameter: 2", 3",4"   Optional Part: Underdeck Clamp, Ballast Guard   Drawing: Customer Supply Drawing or Sample   OEM: Acceptable   Annual Output: 10,000MT   Why Choose Us:   1. 26 Years Experience Producing Cast Iron Drainage Products   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