Industrial Temperature Indicators: Heat Sticks, Crayons, Thermo Labels & Markers for Welding, QA & Process Control {Precision temperature control distinguishes repeatable, spec-compliant work from trial and error. In fabrication shops, foundries, refineries, power plants and paint lines, teams need quick, visible confirmation that a surface has reached a specific heat https://smartfocus00.bloggazzo.com/35694101/what-does-temp-crayons-or-thermochalk-mean-and-can-it-be-useful-to-you