Anyone know Canada or USA
They are not being made anymore so very hard to find. An alternative in the US/Canada is LaBella.
Chris Sands is known for using heavier gauge nylon strings than most. His Heavy set measured .024 .028 .032 .030w .024.
You can get these gauges from just about any supplier of guitar strings.
Color aside, you'll see many strings described as rectified or trued. These nylon strings have been ground or shaved so that the diameter is more consistent for better intonation. Some of these will have a satin appearance or feel to them.
The various other plastics including fluorocarbon are often denser than nylon. Strings of the same tension will be thinner as a result.
'Stelling Sunflower' 10 min
'Eager and Anxious' 16 min
'High on a Mountain' 1 hr
'Give Me The Roses.' 2 hrs