Nan province is famous for it's art of making silver products. Originally the silver came from the area that is now part of Laos. So most silver is imported now or like in this workplace it comes from the recycling of medical products.
Nowadays you will still find many shops in Nan and Pua that sell silver products from their own workplace. All made by hand. Now this workplace looks like from ancient times, but is still in daily use. Photo taken during lunch break. Products of this workplace are sold at Nan Noble House