
Gas heated catering equipment Part 3: Materials and parts in contact with food and other sanitary aspects
出版:German Institute for Standardisation (Deutsches Institut für Normung)

專家解讀視頻
Gas heated catering equipment Part 3: Materials and parts in contact with food and other sanitary aspects
出版:German Institute for Standardisation (Deutsches Institut für Normung)
專家解讀視頻