Temperature Indicators: Sticks, Crayons, Strips & Markers For Welding, Inspection & Operations {Precision temperature control distinguishes repeatable, spec-compliant work from guesswork. In fabrication shops, foundries, refineries, power plants and paint lines, teams need quick, visible confirmation that a surface has reached a specific heat before moving to the next step. https://classicarena19.topbloghub.com/43105794/metal-surface-temperature-measuring-chalks-or-crayons-or-sticks-an-overview-on-how-things-works