... .Can pass 48 salt spray before rust. Battery Spring Pin Connector (Samples Welcomed ) 1.Material:steel,stainless steel.brass,aluminum, ... casting introduced from Taiwan,spectrum analyzer device imported from Germany,vacuum melting furnace,CNC machine center...8Test Euipmentspectrum analyzer, Physio-chemicalLabora ... , meet the RoHS standards (SGS test battery spring pin connector (samples welcomed )