Electrotype: a duplicate relief printing plate made electrolytically by depositing copper on a waxmould taken from an original plate or type and backing it with a lead alloy.
Both crankcases are established by the lost WAX method which means that you have to make a negative mould.
双方曲轴箱,建立了由失蜡法这意味着你必须作出负面的模具。
3
The completed assembly is coated with a ceramic slurry, allowed to dry and then heated to melt out the wax leaving a ceramic mould into which the molten alloy is poured.