Qiying has a dedicated analysis and testing center, equipped with high performance liquid chromatography, gas chromatography, moisture analyzer, polarimeter, UV tube photometer and other integrated design. To ensure each piece of excellent quality and stable performance of products. We have arranged a sound EHS system,overall management of product sales process. From sampling, testing, product releasing, sample retention and other links strictly control product quality. QA is in accordance with the requirements of cGMP sampling operation, QC accordance with SOP control procedures testing, warehouse release product based on testing result. And same batch product is retained for stability inspection, providing accurate and reliable quality data. On regular arrangements of joint audition of Manufacturers with clients, to ensure safety and stability of sourcing materials and products.