You might find the ZXR10 group of mibs from ZTE may contain what you need - they are the switch / router mibs for ZTE. It has helped some and not others.
There are 33 of them in total and you can find all of them in the snmplabs mib public repository.
Looking at https://mibs.observium.org/mib/ZXR10-MIB/ suggests trying a snmpwalk of the following (Board Temperature) first and seeing if you get a response back. If you do, you are in luck - one of the above mibs has what you want - or just use that OID.
zxr10SlotTemperature .1.3.6.1.4.1.3902.3.2.3.1.10
If no response, just do a full snmpwalk and see what OID's you get back. if they are somewhere in the 3902 range, the details of each range are broken down here:
https://mibs.observium.org/mib/ZXR10-SMI/
Other than that, not much I can think of.
Good Luck.
There are 33 of them in total and you can find all of them in the snmplabs mib public repository.
Looking at https://mibs.observium.org/mib/ZXR10-MIB/ suggests trying a snmpwalk of the following (Board Temperature) first and seeing if you get a response back. If you do, you are in luck - one of the above mibs has what you want - or just use that OID.
zxr10SlotTemperature .1.3.6.1.4.1.3902.3.2.3.1.10
If no response, just do a full snmpwalk and see what OID's you get back. if they are somewhere in the 3902 range, the details of each range are broken down here:
https://mibs.observium.org/mib/ZXR10-SMI/
Other than that, not much I can think of.
Good Luck.