Calor gas bottle to blowtorch portable propane bottle refill?

[d3v]

How does one refill a typical plumbers blowtorch refillable propane gas bottle that uses the CGA600 connection (the same one on typical coleman/jetboil/ type camping screw-on gas cans) from a typical backyard calor 13kg propane bottle?

I know the typical Airsoft propane to gbbr magazine valves adapter such as the madbull one are needed, but what about the first step which is to fill the portable blowtorch bottle? What exactly is the adapter/connection needed to do this?