... , wire remote monitoring· Analog compensation of load, improve start-up , esp. suitable to Permanent Magnet Synchronization Gearless Traction ... , wire remote monitoring· Analog compensation of load, improve start-up , esp. suitable to Permanent Magnet Synchronization Gearless Traction ... which is unique in China.OTIS spare parts (Board, push button ,switch,service tool,inverter,...)Kone spare parts (PCB, ...