You will need to look at the shipping/packing manifest that was provided to Customs.  If you purchased them through Hyperbit, there's no telling what they listed the product as on the forms.  One person I know saw that Hyperbit had listed the miners as "baby napkins."  So, they are asking you for conformity papers - but conformity papers for what?  What product code?  Then, you can go to step 2, which would depend on product code, etc.