About Company Leading Brand of heat pump in China As a national high-tech enterprise, TONGYI Heat Pump specialized on heat pump R&D, manufacturing and providing comprehensive energy-saving solutions based on heat pump products. Professional BrandScientific ManagementIntegrated Supply Chain +86 18933981871 Sunrise@gdtongyi.com Watch Our Video Presentation 100 Over 1 million of users 15 15+ days shortest lead time 45 45K+ monthly heat pump capacity 22 Over 20 years of heat pump Experience