Does anyone know the main origin and characteristics of all kinds of precious stones [emerald, agate, crystal, etc.]
Or the characteristics of a certain stone
Or the characteristics of a certain stone
Who can help provide a lamp sales management software, and the cracked version can also be used. As long as it can be used permanently, there is no functional limit. Don't copy it, please go away if you advertise. Thank you for your cooperation. Satisfactory additional points.