Product Namehigh quality customized aluminum telescopic tubeClosed30mm-1000mmExtendable30mm-5000mmThickness+/-0.001mmAdvantageHigh precision parts finely processed by ... .com, CNC lathe, turning lathe, wire EDM, etcMaterialsStainless steel, iron, aluminum, brass, copper, steel alloy, etcNozzle shapeSquare, Round, Oval or customers ...