HV=220 of steel 37 sheet , does full annealing work and make the hardness reach to 140 ?
HV=220 of steel 37 sheet , does full annealing work and make the hardness reach to 140 ?
(OP)
HV=220 of steel 37 sheet , does full annealing work and make the hardness reach to 140 ?
RE: HV=220 of steel 37 sheet , does full annealing work and make the hardness reach to 140 ?