... Compact resistance 3.Waterproof 4.Real factory Best sheet metal extruded aluminum electronic enclosure Feature1.We can make part ... dart shafts),gears (pinions, wheels ) bearing, bearing seat, spring, connector, socket, bushing, push-button, etc.Surface Finishannealing, natural anodization, ... , welding and assemblyOther products for reference: Best sheet metal extruded aluminum electronic enclosure