Indicator door Lock 1)Material: Zinc alloy and stainless steel #201 2)Finishing:polishing ,sanded,spray 3)Size:54mm dia. Indicator door lock.These products are the hardware accessories and applied to assemble the public toilet partition in the school, airport, business building, hospital,hotel, museum, gym, office building, theater, supermarket, subway, library, laboratory, factory etc.Indicator ...