XIZI Clean Energy (西子清洁能源装备制造股份有限公司, formerly known as Hangzhou Boiler Group, HBG, 杭州锅炉集团股份有限公司) is a company that specializes in boiler, pressure vessel, environmental protection, and new energy equipment. XIZI Clean Energy is a company that specializes in boiler, pressure vessel, environmental protection, and new energy equipment. It provides flue gas purifiers, heaters, boilers, deaerators, and other products designed for metallurgy, chemical, urban construction, and energy markets. In addition, the company delivers consulting, research and development, production, sales, installation, and other related engineering services.