... ISO9001:2008,BV,RoHS,REACH brass or aluminum male female connector Materials: iron, carbon steel, stainless steel ,aluminumFinish: ... The scope of business is the hardware turning parts, connector’s pin & socket contact, Axis of copiers, barcode ... Centerless grinding,grinding machines,automatic milling machineslathes, tapping machines, screw machines, thread rolling machine, rolling machine, drill press ...