Common type, barrier type, flow type, gradient type, breakout type, mixing type, wavy type, pin type, acceleration type, exhaust type, separation type.
Select good SAGM645, 42rMo and Japanese materials:
DH2F, KPS6, KDA1S, SKD11, SKD61, DC53, M2, KPS6, 8407 and other heat treatment processes: tempering, tempering, nitriding, etc.
