Shenzhen Nanshan District Guangdong No.38 Pipes No.45 Energy Saving Technology No.46 Qing Jie Technology No.50 Energy Saving Devices No.72 Petrochemicals Jie Neng Jian Pai HVAC Power Generation Technology Power Generation Environmental Protection Products Building Materials Environmental Technology 国家高新技术企业 高新技术企业 科技型中小企业 市科技型中小企业 省级高新技术企业 实用新型专利