Indicator Lock 1.material:stainless steel #201 #202 #304,and zinc alloy 2.Finishing:polishing, ... in the school, airport, business building, hospital,hotel, museum, gym, office building, theater, supermarket, subway, library, laboratory, factory etc. Indicator Lock ... , door lock of toilet partition accessories.1)Material:stainless steel #201 #202 #304 ,zinc alloy .2)Finishing:polishing ,sanded, ...