Grade: First grade.
Welding Chalk Whiteness: 90%.
Hardness: 1 Moh's.
Welding Chalk Silica: 60%.
Welding Chalk Magnesium oxide: ≥ 30%.
Finish: Not polishing.
Certification: ISO9001.
Types of products: Export- Welding Chalk, a Welding Chalk, square- Welding Chalk, Welding Chalk white, strip- Welding Chalk, Welding Chalk secondary, Round Welding Chalk.
Welding Chalk Characteristics: Fastness when firing, line is clear, dust free.
Welding Chalk Application: Used by welders or fabricators for marking on metals when cutting steel plate or welding.
Use: Mechanical manufacturing, Vehicles manufacturing, ship manufacturing, steel factory, etc.