We are offering black royalite grain detailed product description we specialize in the manufacture & export of black royalite grains. 1.high quality 2.reasonable price 3.delivery on time we specialize in the manufacture and export of a variety of abrasives like black royalite grains. siys exim is a prominent manufacturer and exporter of various industrial abrasive products, basic chemicals, magnesium oxychloridesorelless…