Floor drain 1. Material Brass, Bronze or Stainless steel can choose ABS Filter design can prevent fume, overflow and insect 2. Size 100 x 100mm , 150 x 150mm 2. Surface High polished with Chrome palted or Brushed Nickel Thickness of Nickel layer : 10μm Thickness of chorme layer 0.2μm Acidy salt spray test 24 hours (CASS 8 Hours) 3. Point Patent Design on ABS filter 4. Certification ROHS, ISO9001:2000 5. Guaranty 5 Years Guarant Automatic Polish machine to polish floor drain