... hours.Low wear,friction ptfe teflon bushings,female threaded copper bush1.Basic Information: Product name Precision cnc parts ... Metals)Alloy Steels/ Aluminum/ Brass/ Bronze AlloysCarbon Steel/ Copper/ Stainless Steel/ Tool SteelCold Rolled Steel/ Bearing SteelMaterial ( ... ,7075Copper110,145,147,314,316,360,544,624,Beryllium CopperZinczinc,zinc alloyPlasticABS,Acetal,Celcon,Delron,Nylon,TeflonOtherBronze ...