Industrial Temperature Indicators: Sticks, Thermochalk, Thermo Labels & Markers for Welding, QA & Process Control {Precision temperature control distinguishes repeatable, spec-compliant work from trial and error. Across shops, foundries, refineries, power stations, and paint lines, teams rely on quick, visible confirmation that a surface has reached a specific heat before https://ecoportal20.webbuzzfeed.com/37247179/indicators-on-heat-crayons-or-welding-temperature-sticks-you-should-know