The Px outer disk is that outer disk.
Px outer disk is futures outer disk. The external disk px can be viewed in the international general external disk trading software MT4. It's just that the foreign exchange market has never been opened in China, so many domestic futures software will be delayed or charged when they look at the external market, so they can't trade. Just want to use MT4, you need to open an account with a regular foreign exchange dealer before you can log in.