TUV marked by Germany's TUV to customize a safety certification mark in Germany and Europe are widely accepted. At the same time, enterprises can apply for signs TUV, CB certificate to apply for the merger, which through the conversion and other countries to obtain a certificate. Application of safety standards aimed at preventing the use of household electrical appliances in the process of the possible dangers caused by personal injury and property damage, including electric shocks or electric shock, fire or high temperature, mechanical aspects of the existence of the danger of radioactive danger dangerous chemical.