By the way, the repairs of office chairs, management, staff and work knowledge, replacement of seat parts, jack, wheel, mechanism, back base, handle, etc. are done. Replacement of office chair parts Jack Star Blues Jelly PVC wheel Two-way bus mechanism with lock Soft and dry handle Five metal and plastic base It is done with the best quality and the right price Obtaining contracts with private public companies It is done by hospitals, airline agencies and other organizations