Well, CEX is a formula that is used to make bar codes for items and is very hi-tech.

Yes

The closest possible replica of an original - can range from artwork to items of clothing

Often a Grade A replica can be mislead to believe its an original item

"Paint Grade" is a quality rating on wooden mouldings, trim pieces, etc. These items are usually "Stain Grade" or "Paint Grade". Stain grade is the higher of the two, and the pieces can be finished with a wood stain and sealer for a satisfactory finish. Paint grade must normally be painted, because of minor blemishes and splices in the material.

value means an amount of how much items you have,whether it is numbers,pets,food,etc.