Established in 1993, Guangzhou Speed Refrigeration Equipment Co., Ltd (formerly known as Tongda Refrigeration Equipment Co., Ltd) has over 20 years of experiences in researching, designing, manufacturing and selling quick frozen equipment. We started to research the techniques of liquid nitrogen freezing and fresh preservation from 2008, first liquid nitrogen freezer was launched in 2015. After years of development, Guangzhou Speed Refrigeration Equipment Co., Ltd now has become one of the most famous supplier of liquid nitrogen frozen equipment.Product Range:Liquid Nitrogen Cabinet FreezerLiquid Nitrogen Tunnel FreezerFresh-Preservation StoreVacuum Precooling EquipmentCold Chain EquipmentOver the passed 20 years, we have gained countless awards, certificates and patents:- ISO9001 certified- CE certified- Hundreds of invention and utility patents- Chinese High-Tech Enterprises- Chinese Famous Brand- Top 10 Brands of China's Refrigeration Industry- China's Quick-Frozen Equipment Best-Selling Brand- China's Rapid Freezing Industry Leading BrandOur proven techniques of liquid nitrogen quick freezing can be widely applied on various kinds of products, such as bakery products, pasta, fruits, vegetables, beverages, meat, bean products and snack food.