beijing tsinghua sunshine energy development co., ltd. main products: solar water heater, photovoltaic power generation, air source heat pump, vacuum tube, wall-mounted furnace, controller. beijing tsinghua sunshine energy development co., ltd. (hereinafter referred to as tsinghua sunshine company) is a high-tech enterprise under tsinghua holdings, which is affiliated to tsinghua university. the company focuses on solar thermal utilization technology, integrating product research and development, production and manufacturing, engineering design and marketing, and is committed to clean energy.
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