New engine has loss of compression

""the spacers under the springs. The spacers were just little shims of copper, and they weren't hardened like they should have been""

WTF ? That is the second time I've heard this , I have taken a part a few RPM heads after hearing this and have never seen the copper washers , only hardened steel cups . Y ou have pics of this ?

Is this getting to be like watches , they making fake RPM heads ?