... mobile phone power button pass CE,SGS,ROHS test. 7. Packing:Standard seal packing or a customized 8.Technology: Injection molding ... etching ,Assembling 9.Advantage:The most common type of power button, technology maturity ,to realize more appearance through the different ... finish) ,we can provide raw material SGS report and ISO System certificate such as ISO14001:2004 , ISO9001:2008 , ISO13485:2003 ...