Beijing GreatDia Superhard Tools Co.,Ltd is a professional Hi-tech enterprise,with 22-year experience of R&D, manufacturing and sales of diamond tools in the worldwide market. 

Our main products: grinding wheels, drills and the related tools for automotive glass and solar glass processing. 

With advanced technology,craftsmanship and equipment,we have been widely recognized by worldwide consumers. We sincerely hope to value our customers and establish long term cooperation.