Door Operator Vvvf
General product information
This is speed regulation door machine, we are manufacture.1. This door operator is midsplit direct-current resistance speed-change door operator.
2. the door width: 700/750/800/850/900/950/1000/1050/1100.
3. Material : iron.
4. We can provide many kinds of door operators.
5. We produce it by our factory, so we can provide the best quality and competitive prices.
6. More information pls contact me.