A matsayin babban masana'anta a filin dawo da zafi, Holtop ya sami babban nasara a cikin firiji na kasar Sin 2008 a Shanghai daga Apr.9-11. Kayayyakin Holtop HRVs da ERVs, Rotary heat Exchanges da AHU suna sha'awar baƙi da yawa daga gida da waje.
Rahoton ranar 15 ga Afrilu, 2008
