The company developed the core technology of three cooling system, with a number of patented technology of the sixth generation of fruit and vegetable vacuum precooler in Shandong vegetable base exhibition, advanced welding process so that our vacuum box life of up to 20 years! With three level cooling technology of fruit and vegetable vacuum precooler energy saving is very obvious! A year casually save tens of thousands of electricity, want to understand this core technology customers can communicate with us.