The utility model relates to a casement door opening and closingmachine.
本实用新型涉及一种平开门开关门机。
2
The utility model relates to a door opening and closingmachine of a swing door.
本实用新型涉及一种平开门开关门机。
3
The leverage of synchronously closingmachine is important for multilayer hot-press in forestry industry because its closing precision directly affects products quality.