... : Brass/Phosphor BronzeContact: Brass/Phosphor Bronze PLATINGContact: gold plated contact area, tin plated solder area (gold flash: FU"/3U"/6U''/15U''/30U ... electronic connectors,switches,cables, plugs, encoders,and electronic wires.Please contact us,if you have any needs about switches,usb connector ... the excellent products and best service for you.Welcome to contact us,thanks!