Danube offers Door Knob Set with one side key. Danube is engaged in supplying of building materials. Danube has gained certification like; ISO 9001:2008, ISO 14001:2004 and OHSAS 18001:2007. This Door Knob Set is available with one side key and one side knob and Cylinder profile 70mm / 60mm. It is used for furniture, architecture & interior design.