Conform To The Popularity Manufacture's Roof Drain Advantage: Meet Customer's Small Batch And Personalized Requirments. Material: Galvanized Sheet Dimension: 24", 20", 18" Or As Per Request Coating: No Coating Or Powder Coating Advantage: Angles Has A Arc Will Not Sharp And Will Not Hurt Work's Hands Why Choose Us: 1. 315MT Automatic Punch Line With Full Size Mold Will Make The Sump Pan Receiver Very Flat And No Folds 2. Li Has QC Manager Approval And He Has Strict Requirements For Product Quality OEM: Acceptable