adjustable surface mounted automatic spring closing door closer with wheel fire rated ser door hardware

hardware value:designed for all kinds of fire doors, our compliant is the perfect choice for all kinds of fire doors. in addition, our conformers ensure the proper use of the door and the parts can be changed at any time. easy to install: each of our parallels comes with detailed installation instructions, including every suitable part, saving you time and facilitating quick installation without delay. our paramotor does not require a trip to the hardware store to install and run, it's simple to operate and quick to get started note:our conformers are suitable for all kinds of fire doors, please choose the right product for your needs, if you have any other questions, please contact our customer service.syi