Johoku Mr.Sofue has below mail for us.
Mizhubishi will reevaluate TWF HVSF with M4 material.
Please answer below questions.
Comparing to old material, how did TWF change the new material?
As for the new material, is it a kind of normal material used in TWF.
the spec(using new material, M4) only for Johoku(end user is Mizhubishi) ?
Is the spec( using old
material) also only for Johoku(end user is Mizhubishi)?