Shanghai Na Long Tech Co., Ltd is a company specialized in various construction chemicals including dry mortar additives, Concrete Admixture and other specialties etc. With more than 15-year industry experience and strong technical competence, Na Long can support for construction solutions and technical support to solve the application problems and product optimization. The company is based in Shanghai, economy and technology center of China, branching out to various partnership chemical plants across North China, South China and East China. Owe to advanced quality management knowledge, product innovation and brilliant understanding of construction industry, Na Long ensures the product supply excellent stability and optimized performance. Our company can provde comprehensive service to the manufacturers of construction coating, dry mix mortar, concrete and construction admixture. The service is including raw material sourcing, formulation development or new product development, QC or R&D lab establishment and lab equipment sourcing & export etc. WE want to have a continuous talk and long-term partnership like your friend growing together with YOU.