I wonder apart from state owned railway museums if China will ever produce the circumstances that allows for volunteer driven heritage lines like those in Europe, Japan and the US. These last bastions seems to be in regions where people lack the spare time and resources for maintaining such an endeavor. And those who do have those resources seems to be located in high density cities with no space for such operations. The steam crane maintaining the coaling looks like a very interesting piece of equipment, it appears to be steam powered despite the mid century modern look and somehow it transmits power to those freight bogies it is resting on allowing it to move on its own.