How many years can Dunhuang 698t last?

Twenty to thirty years or so. Dunhuang 698t can be used for about 20 to 30 years. Dunhuang 698t innocent rhyme crescent 07 big sound, good Zheng sound is getting better and better, can be used for about 20 to 30 years. The advanced Zheng in Dunhuang is very good, and departments 695 and 698, which are suitable for art examination, are very popular among art candidates.