WA/A/GC ceramic/vitrified grinding wheel 1.toughtness,longlife durability,35m/s 2.first grade material GC,60# 80#120#,etc WA/A/GC ceramic/vitrified grinding wheel1.It is in high hardness and brittle, it is made of first grade material A/WA/GC2.it s grain edges are sharp and it's of excellent capacity of heat-transmission.3.It is suitable for the grinding of cutting tools and workpieces of hard ...