... assembly service.Various Machining Materials:stainless steel, alloy steel,brass, bronze, copper, aluminum, plastic, or customer specified. ... disqualification will be responsible by us. Item NO. high precision inspection jigs and fixturesMaterialsIron, aluminum, steel, copper, ... cooperate with you.Specifications of machining parts:1, Material :Brass , bronze , copper , aluminium , alloy , stainless ...