1. This is traction pulley for brand Mitsubishi elevator. We are manufacture, producevariouskinds of traction and friction wheels. 2. The Technical parameters: Φ630×6×12; 3. This pulley use Φ6mm traction rope. 4. The pulley material: Ductile Iron. 5. We can provide many kinds of traction pulley and traction wheels. 6. More information pls feel free to contact me.