Zhejiang Huadian Lightning Protection Technology Co.,Ltd. Is a comprehensive high-tech enterprise integrating science, industry and trading, engaged in the production of lightning protection and grounding materials as well as the construction of difficult lightning protection & grounding projects. The company takes the lead in the R&D and production of new lightning protection & grounding materials in China, completely changing the situation of heavily depending on the importation of long-life (more than 50 years) grounding materials, and has many inventions recognized in China or in the world. The company has won many state patents of utility model and inventions, drawn up and declared two national standards. The self-spreading exothermic welding flux, independently developed http://www.chinagroundrod.com/