Glass Insulator, Polymer Insulator, Surge Arrester manufacturer / supplier in China, offering Direct Sales From Chinese Factories. High-Quality and Durable Glass Insulators, Specially Designed for Power Lines on Iron Towers, Utility Poles, etc. U70BS, Chinese Factories Directly Sell Glass Insulators Professionally, Which Are Used for Various Power Lines. Xwp-70 Xwp-120 Xwp-160, Durable Suspension Glass Insulator for Electrical Distribution Systemsu70b/146u70bp/146u70bp/146D and so on.