https://scientific-programs.sc....ience/wiki/10_Pinter
Bi Fold Door Repairs Bi fold doors can be difficult to operate if the hardware is damaged. The top hinges and bottom rollers are the most often damaged components that require servicing or replaced. The track of the door can become blocked by dust and dirt and can cause it to stick. It is simple to fix this issue by cleaning and taking out the dirt. Fixing the hinges Bi-fold doors are able to open up rooms in a stunning way. However, they do have no problems. The hinges can become misalign