Xinxin Zipper Company has been adhering to the "quality first, service first" philosophy, since its inception has been to provide customers with quality and price competitive advantage of zipper products. In order to ensure the stability of product quality, we have established a comprehensive quality control system. We have the products of their own design department, technology department, weaving workshop, dyeing workshop and pull headspray workshop. The most important is that we have a senior technical staff, closely followed by the market dynamics of the quality control of products to be strictly controlled to ensure that the NDK zipper to achieve the highest standards in the world. In order to better reflect the world-class manufacturing standards, NDK has a team with top quality control capabilities. We have trained quality control system to ensure the production of high quality products through the operation of extremely strict quality process control system. Our quality control process covering each a small step in the production process, query from the raw materials, production process inspection and semi-finished and finished testing to packaging products checks until the last transport.