Depressed Center Grinding Wheel
*  Application: Using for grinding the surface of all kinds of metal
*  Specification:
4"     100x6x16mm      A/WA
41/2"  115x6x22mm      A/WA
5''    125x6x22mm      A/WA
6"     150x6x22mm      A/WA
7"     180x6x22mm      A/WA
8"     200x6x22mm      A/WA
9"     230x6x22mm      A/WA