The large-scale food cold room is constructed for Hangzhou Doulao's Xiaoshan food factory. The cold storage temperature includes -30 Celsius degrees frozen, -20 Celsius degrees low-temperature refrigeration, 5 Celsius degrees refrigeration, 10 Celsius degrees refrigeration. The project uses polyurethane double-sided color plate to keep insulation, Bitzer parallel unit, unilateral and bilateral chillers, manual sliding door and electric roller shutter door.
The cold storage construction site is located in Pudong New District, Shanghai. The cold storage's volume is 1500 cubic meters, and it is divided into 9 rooms according to customer's demand. The separated 9 rooms include freezer, cold storage and cooling room. The main refrigeration equipment are asked to use all well-known brands, such as the Theodoor air curtain machine, Emerson Copeland compressor, Hao Shuang cooler and the cold storage selects polyurethane insulation board.
Hao Shuang constructed a cold storage section for the World Expo Hong Kong Museum, and the Austrian National Museum.
There were safety concerns with the original refrigeration system. 4,000 tons of large cold storage equipment was installed over 54 days and was finally completed and put into use in early March 2015.