Except for hôtels or expensive restaurants toilets there won't be any toilet paper available in Chinese toilets.
So you should bring your own tissues. I once wrote that this somehow explains that pocket tissues in China are all perfumed tissues. Chinese people use them both as normal tissue and as toilet paper!
But did you ever wonder why there is no toilet paper in Chinese toilets?
The answer is simple: if toilet paper was provided for free, then it would always stolen.
Some Chinese people would take the toilet paper and then resell it!