Material:Stainless Sheet SUS304,SUS303,Brass Custom Design Content RoHs The precision has been control less ... 1.Precision mechanical dimensionsButtery packageMetal pakageMaterial:Stainless Sheet SUS304,SUS303,Brass,KOVAR,INVAThin Film Metallizatin:Au,Ni,Mo,Ti,Pt 2 ... been according to Bell core,RoHS 2002/95/EC standard. CNC precision machining part