96K views · 711 reactions | This video is showing silver brazing tips...

To prevent pieces of copper and oxides from getting into the tubing, ensure you clean your copper before you cut it. #HVAC #Refrigeration #Cooling #Heating | HVAC School

2K views · 33 reactions | Be careful not to build pressure inside the system. All you want to do is FLOW nitrogen (2-5 SCFH) while you blaze. Don’t forget to wear proper PPE before you pull out your torches. #HVAC #Refrigeration #Cooling #Nitrogen | HVAC School | Facebook

6.3K views · 92 reactions | Fascinating process. Copper Plate Etching Intaglio process demo video to show the end to end process of creating an etched copper plate. From the original sketch, creation of the copper plate, hand inking, rolling a print through their Conrad printing press, and the final art piece with the mounted copper plate. Artist is Chelsea Smith. Music is "Temporary Solution" by Infinity Ripple. | Art Inspirations | Facebook