Industrial Temperature Indicators: Heat Sticks, Crayons, Strips & Metal Markers for Welding, QA & Process Control {Precision temperature control separates repeatable, spec-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://transformativethreshold88.webbuzzfeed.com/37211332/an-unbiased-view-of-metal-surface-temperature-measuring-chalks-or-crayons-or-sticks