1)knob cylinder 2)Brass cylinder and keys 3)finish:bp np cp ab 4)cam: sintered steel 5)Standard: european standard EN1303

1)normal knob cylinder

2)length: 40mm--120mm

3)Cam:sintered steel

4)hoodle: 6pcs

5)Standard:european standard en1303

6)Half cylinder, double cylinder, single cylinder, bathroom cylinder