... cooler is a kind of cooling equipment suitable for cold storage, which includes three types, i. E., ... temperature, fin space 4.5mm, is applicable for cold storage above 0 ºC, keeping fresh food such ... type of moderate temperature, fin space 6.0mm, for cold storage around -18 ºC, keeping food such as ... low temperature, fin space 9.0mm, for -2ºCcold storage, used for freezing fresh meat and fish products ...