1. material: iron, copper, stainless steel, aluminium
2. specification: 4*3*2.0mm, 4*3*2.5mm, 4*3*3.0mm, 5*3*2.0mm, 5*3*2.5mm, 5*3*3.0mm, 6*3*3.0mm, 3*2.5*2.0mm, 4*2.5*2.0mm
3. surface: electroplate, baking finish, drawbench, polishing
4. ball bearings: no BB
5. color: bronze, sliver-white, red bronze
6. usage: shower glass door
