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About Sia

Sia Abrasives is one of the world’s leading manufacturers of high quality abrasives. For 135 years, the company head quartered in Frauenfeld / Switzerland has developed, manufactured and marketed complete abrasive systems tailored to specific requirements and applications for surface preparation and finishing on workpieces of all kinds.

Through its own companies or representatives in more than 80 countries, Sia Abrasives maintains direct contact with industrial and trade customers.

The company has been part of the Bosch Group since 2008. In the Bosch Power Tools Division, Sia Abrasives is the specialist in coated, bonded, nonwoven and foam abrasives.

Visit Sia Website


Monks & Crane Industrial Group Ltd
Atlantic Way, Black Country New Road, Wednesbury, WS10 7WW