RoHS Directive
　　EU Parliament and Council of the European Union is to set up technical barriers to improve access threshold for products, and to strengthen environmental protection to ensure sustainable development. In January 2003 adopted the RoHS directive,full name is The Restriction of the use of certain Hazardous substances in Electnical and Electronic Equipment,that limits using certain deleterious substances in the electron electrical equipment. (RoHS altogether listed six deleterious substances,including Pb,Cd,Hg,Cr6+,PBDE,PBB. Directive, also known as Directive 2002/95/EC, which were added by the European Union in the form of another resolution 2005/618/EC in 2005 year that clearly prescribes the maximum limited value of the six hazardous substances.