Raw materials should be quality inspected. It was a big deal when we had 150 rolls of copper strip fail the QC testing. I worked inbound inspection for three

Raw materials should be quality inspected. It was a big deal when we had 150 rolls of copper strip fail the QC testing. I worked inbound inspection for three summers at Andrew Corporation. We checked everything before it was stocked on our shelves. I remember asking why do we have to have to check the threads on boxes of Cap Screws from external supplies. The answer I was given is that when a technition is 150ft in the air mounting waveguides, he needs to know that the stupid screws will work the first time.