Hi spud! I found your images of the Qingqi Forks, and they look suspiciously similar to the forks on my Bashan Brozz. Inverted, but not true dual reservoir cartridge forks!
I took one off yesterday and intend to open it up tonight. Did you take any picks?
I am going to use a caliper and get dimensions on the damping rod, piston, other parts and assess the situation for installing Racetech cartridge emulators. Racetech has lots of different applications, so I will need to provide them with spring width and inner diameter, and the diameter of the top of the dampling rod to select a compatible emulator. I am sure they will have one that fits. Did you install them???
Thumper (Andrew)