Rhema Sanitary Ware Co. is a professional factory for manufacturing floor drain since 1995. it is auto-close floor drain with perfect design and own patent. its function is to prevent bad odor, backflow, and insect from sewer.According to materials, we have two main flooor drain series.1). stainless steel floor drain series materials: 304# s.s. surface: 8K polished mirror, or, wire-drawing face.2). Brass floor drain series Method: die-casting process surface: Chrome platingGood news: our newest items will be coming to the market, if you interested, pls let me know. Lead time: 20days for production.Payment: TT or LCMOQ:1000PCS