Not old rate. Just got A grade r410A gas for 1600 per kg. And this gas is of excellent quality. Drops vent temperature to 8 C in no time.
This is same "american gas" sold by AC fraudicians.
It's chinese gas.
One thing I would like to add dollar hike should have least impact on chinese goods sold in markets because importers are now directly importing stuff from china by paying in Yuan. They got agents in China to whom they transfer money in yuan and place orders. An importer of fancy lights from China told me about this.
But if someone is using dollar rate as an excuse he is just trying to manipulate you to raise prices. Only large companies are importing in US dollars from China. Small importers are using Yuan now.