... grain, grade,and speed2.Suitable for the work pieces made of materials Chilled steel3.High-speed steel, High-carbon steel, ... weaker flexibility than A.Suitable for the work pieces made of materials Chilled steel, High-speed steel, High-carbon ... -1200Speed m/s35-603035-5035-6035-6030-60MaterialsA.WA.PA.MA.SA.GC.C.ZAOur company supplystraight wheel,type ... wheel)Material(A,WA,GC,C,DA,DC,PA,38A) 250*25*32 ...