Na Eprel 7th ruo 9th, 2011, 22nd International Exhibition for Refrigeration, Air Condition, Heating and Ventilation, Frozen Food Processing, Packaging and Storage nke a na-akpọkwa China Refrigeration Expo, mere na Shanghai New International Economy Center. Na nso ụlọ ọrụ 1200 sitere na mba 32 dị iche iche na mpaghara sonyere. Dị ka nnukwu ụlọ ikuku oyi okpomọkụ emeputa akụrụngwa, Beijing Holtop Artificial Environment Technology Co., Ltd. abụrụla ihe ngosi maka afọ 8.
Ọ dị na Hall E3. N'ime ihe ngosi ụbọchị 3 a, ndị ọrụ ibe Holtop juru ha aka. HOLTOP ume mgbake ventilashị, Ngwakọta ikuku njikwa na usoro okpomọkụ mgbanwe bụ ọhụrụ ọhụrụ na show ụlọ. Ọ dọtara ndị ọbịa anya na teknụzụ ya dị elu. Ndị ọbịa nọ na-arụ ọrụ n'ịjụ, ịrịọ katalọgụ na ịgbanwe kaadị azụmahịa.
Mkpesa na Eprel 10, 2011