[Class : 6] Floor Drains; Roof Drains; Expansion Joints; Strainers For Roof Drains; Stack Sleeves; Access Covers; Trench Drains; Cleanouts; All Made Of Metal In Class 06[Class : 11] Floor Drains; Fittings And Bends Adapted For Connecting Toilet Bowls To Soil Pipe Lines Namely, Horizontal Fittings, Fixed And Adjustable Vertical Fittings, Off Set And In Line Vertical Fittings, Institutional Fittings; Shower Drains; Carriers For Supporting Plumbing Fixtures Such As Water Closets, Sinks, Lavatories, Drinking Fountains And Water Coolers; Interceptors For Hair, Plaster And Other Solid Debris In Waste Water Lines; Water Hammer Arresters And Water Line Shock Absorbers To Control Fluid Surge In Water Distribution Systems; Soil Pipe Fittings And Connectors; Strainers For Floor Drains; Sewer Traps; Back Water Traps For Sewer Lines; Drain Traps; Back Water Valves; Hydraulic Check Valves; Ablution Faucets; Squat Type Water Closets; Wall Mounted Hydrants, Floor And Ground Hydrants, Non Freeze Hydrants; Access Covers; Oil And Grease Interceptors For Water Lines; And Cleanouts In Class 11[Class : 19] Non Metallic Strainers For Roof Drains, Trench Drains.