Ningbo Ranlong Electric Co., Ltd. is located in Ningbo, Zhejiang. It is a comprehensive insulating material manufacturer integrating production, research and development, and sales, including: polyimide powder and profiles, PI board and rod processing; high-strength FRP insulation Deep processing of casing, epoxy resin glass filament winding pipe (cloth pipe), pultruded pipe insulation, etc.; high heat-resistant products and engineering plastics, etc. Products can be widely used in military industry, aerospace, automobile, office equipment, electronic and electrical equipment, scientific instruments, industrial machinery, plasma cutting and other industries. Our