Sophia, Bunny, etc. MDI board brands are mainly famous for their environmental protection, among which the more well-known brands include Yantai Wanhua Group. Yantai Wanhua Group is the only domestic enterprise that owns the patent for MDI glue. Wanhua MDI supplies these brands: Schneiman, Sophia, Bunny, Weiyi, Shangpin, Yadan Home Furnishing, Baidusheng, etc.