The company will always put quality management in the first position, which is not only the respect and attention to customers, but also one important way to build and shape our own brand! Quality is the life of our enterprise, but also the soul of Long Shan! Since its inception has always adhere to the ISO international standards to promote the quality, the normal operation of various management systems to make both customers and ourselves more secure! In order to effectively monitor the quality, the company has set up a multi-functional standardized laboratory covering physical and chemical testing, running with the advanced testing equipment from raw materials to finished products in all process testing, it can effectively monitor, evaluate and test the physical properties, environmental variation and environmental protection of materials and finished products, to achieve effective management and control, ensure that our products comply with the environmental protection standards and relevant laws and regulations in Europe and America.