Product parameters
Qinghua
File level dvd
Product brand: qinghua side
Product capacity: 4. 7g
Product name: archive-level dvd
Product level: archive level
Product packaging: single-package
Maintenance: avoid sunlight
Avoiding hot, wet, dusty environments
Avoid sharp object cuts
Method of operation
The plastic packaging outside the box of the serial axle or disc is removed before it is ready to be written on cd-rom and the product packaging is prohibited from being opened when the cd-rom is not prepared。
Cd-r and dvd-r, bd-r, respectively, use cd-roms and cd-rom drives (or players) and are prohibited from accessing cd-roms by file-level writers。
When hand-held cd-roms are taken, the central hole and the outer edge of the cd-rom are squeezed with two fingers, and hand- bent cd-roms are prohibited。
The use of soft tab pens in non-solvent-based ink to write cd-rom labels on cd-rom labels, the use of coins to write on cd-rom labels, and the use of cd-rom laser-reading face data fields。
The cd-rom is returned to the cd-rom box as soon as it is available。