Industrial Temperature Indicators: Heat Sticks, Thermochalk, Thermo Labels & Markers for Welding, QA & Process Control {Precision temperature control separates consistent, code-compliant work from trial and error. Across shops, foundries, refineries, power stations, and paint lines, teams rely on fast, visible proof that a surface has reached a target temperature https://interstellarsystem985.tinyblogging.com/the-truth-behind-the-heat-crayons-or-welding-temperature-sticks-in-news-80575979