For years, we have pursued the principle of quality first, and have attached great importance to the product quality. Our original ISO9001quality management system has passed the version change certification of 2000. We have passed the ISO14001environment management system certification. The quality supervision and quality inspection have been implemented in the whole procedure from the material entering the factory to the products leaving the factory, which enable use to realize the aim of not using unqualified material and not permitting unqualified products to leave the factory.