The first pic is Jinhua BK6126S1, body built on Shanqi SX6125A chassis.
The model powered by Yuchai YC6L260-40 (260hp) diesel engine and Allison T325R 6 speed automatic transmission.
Note that the Jinhua BK6126S1 you photoed belongs to the first batch.
BPT has got two batches of such model which only the second batch are super low floor buses.
The second pic is Yaxing JS6130SHJ, body built on the chassis by the same bus manufacturer with the same model code.
The specification is basically the same with Jinhua BK6126S1.