1)width: 45mm,3-fold,ball bearing,full extension,telescopic
2)length:250--600mm(10"--24")
3)material:high grade cold rolled steel
4)thickness:1.2*1.2*1.4mm
5)loading capacity:45kg/450mm(18")
6)finished:zinc plated,black chrome
7)the installtion gap:12.7mm+...
Products: 35mm slide scanners,
kodak slide projector