In order to protect our brand, the Longchangjie trademark has been officially registered with the China Administration for Industry and Commerce; in order to implement scientific management, the company implemented and passed the ISO9001:2000 quality management system certification early; in order to improve the overall quality of enterprise management, our company internally implemented The 7S on-site management standard... All this is to improve the quality of our products, improve the efficiency of the enterprise, and better serve customers!