The installation must be level. I don't want to bend to the naked eye until it sees. After installation, it must be able to detach the plate/new Assembly back without aid and no damage found at the t-bar.
The installation must be level Do not take the bend visible to the naked eye. After installation disc will be able to remove the disc / reassembly without having to use a new device. And no damage to the frame time.
The installation must be level. Don't be deflections and macroscopic. After installing the sheet and then will be able to take off / out sheet assembly back again without the use of equipment. And do not cause damage to the frame.