... ISO9001:2008,BV,RoHS,REACH brass or aluminum male female connector Materials: iron, carbon steel, stainless steel ,aluminumFinish: plain ... : The scope of business is the hardware turning parts, connector’s pin & socket contact, Axis of copiers, barcode ... , projector, microscope, roughness tester, precision, length of the detector, the high degree of precision instrument, hardness gauge,various gauges, ...