We tested the product, sub-six inspection procedures: mold inspection, testing substrate, plus hard test, coating inspection, comprehensive quality control testing, packaging testing; production of finished lenses, lens industry we are in strict accordance with international quality grading, divided into superior grade, A grade, B grade, C grade in the packaging when strictly separated; unambiguous classification, can greatly reduce the cost of customer secondary inspection; not only is more clearly on the classification, for the Division I technical parameter setting products, does not use the standard range, but closer to the exact standard, the error rate is smaller, so that customers more confidence;