Don't believe the old saying "What you don't know can't hurt you".
Not only can it hurt you, but unresolved defects in your jewelry manufacturing system can put you out of business. Many companies go in circles repairing the symptoms of a manufacturing defect without ever getting to the true source.
Don't let what you don't know, hurt you! Porosity / Pits Cracking Non-fills Fins / Excess metal Nodules Rough casting surfaces Excessive metal loss Dark or damaged stones (stone in wax casting)
JETT Research is known for it's fast and accurate defect source recognition, and relatively painless resolution for jewelry manufacturing defects.