China central television (CCTV), referred to as CCTV, is the national television station of the People's Republic of China, a national public institution at the level of deputy minister. It is the news and public opinion organization and ideological and cultural front in China.It has won many honorary titles such as "world top 500 brands", "Asia top 500 brands" and "China top 500 most valuable brands".Fifteen sets of cold storage units installed for the new site of CCTV adopt 304 food grade stainless steel heat preservation board, bizer semi-closed compressor unit, stable operation of equipment, low failure rate.