Industrial Temperature Indicators: Heat Sticks, Thermochalk, Thermo Labels & Metal Markers for Fabrication, Inspection & Process Control {Precision temperature control separates consistent, code-compliant work from guesswork. Across shops, foundries, refineries, power stations, and paint lines, teams need quick, visible confirmation that a surface has reached a specific heat before mo... https://ecoportal20.webbuzzfeed.com/37211704/an-unbiased-view-of-metal-surface-temperature-measuring-chalks-or-crayons-or-sticks