... /16, 0.2/0.4 mm the stick materisl cutting tool:5CrNiMo,5CrW2Si,6CrW2Si,3Cr2W8V,4Cr5MoSiV1(H13) This series of shear ... life is above 3-5 times of the overall alloy tool steel bit , and may carry on the pre-protection and ... or Dimension:Outer Diameter,Bore Diameter,Teeth Number,Thickness,Segment Size; 2)Segment Welding Methods:Laser,High frequncy,Hot press,Cold press ...