Mandarin technical indicators and Mandarin models can be downloaded for free in the western foreign exchange market. The technical indicators of Putonghua provided are comprehensive and personalized, and there are other software indicators. Mandarin models are also available for free download in western foreign exchange markets, but ordinary investors can only download trading models to learn. You need to pay for the real Mandarin model. If you need technical indicators and trading models, you can search' official website, the western foreign exchange market' for free indicators and models.