Temperature Indicators: Sticks, Crayons, Strips & Markers For Welding, QA & 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://dailynetwork09.therainblog.com/35567053/vpl-sticks-or-vpl-chalks-or-vpl-crayons-or-temperature-stick-no-further-a-mystery-the-revealed-answer