Renminbi would be worn down to mutilated currency after many circulations.
人民币在多次参与流通后，必然会受到磨损，变为残损货币。
参考来源 - 论人民币安全及其法律保护
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Mutilated currency
abstract:Mutilated currency is a term used by the United States Bureau of Engraving and Printing (BEP) to describe currency which is damaged to the point where it is difficult to determine the value of the currency, or where it is not clear that at least half of the note is present. Common causes of damage are fire, water, chemicals, explosives, animals or damage from extended burying of the currency.
With magnifying glasses, tweezers, scalpels and many gallons of disinfectant, the mutilated-currency specialists can spend up to two years analysing a single bill.