... Jack Shield 3. High Quality with Reasonable Price signal shield for GSM CDMA DCS PHS 3G mobile phone Mould: Mould had ... mainly use: stainless steel, beryllium copper, nickel silver alloy, phosphor bronze, tinplate, perm alloy, brass, aluminium, brush finished stainless steel and ... main products: connectors,wires /cable,molds,injection,punch. signal shield for GSM CDMA DCS PHS 3G mobile phone