Since the foundation of QINGAO LNT, we made a rapid development relied on our professional stuff, efficient management, advanced devices and quality products. By absorbing the cut-edge technology of the world and studying the market demanding, our R&D center developed series new and green products, such as Cu-S depressor, tanning agent and etc. Those products are sold all over the world and we also built long and good business relationships with many customers and gain very good reputation.