Hello. I apologize that you have found no good material in supplier certified product. We put our trust in the supplier to sort the material and ensure product was good. We have contacted the supplier and informed them of your findings in their certified product.
ACK has no inventory of insulators at this time. We have instructed our supplier to re check all material before shipping to ACK. We have asked them to change their certified material tag so we will know the material has been through 200% inspection. We are resending all the pictures you have sent ACK of no good insulators to our supplier.
ACK will check the next shipment coming from our supplier to ensure material is good before shipping to CTC.
Please let us know if you need replacement parts.