Material range:Steel, Stainless Steel , Alloy Steel, Cast Iron, CPM 10V, carbon Steel,Nickel, Monel, Titanium, Tool Steel, Tungsten,Aluminum, Aluminum Bronze, Beryllium Copper,Brass, Bronze, Ceramic, Copper, Oxygen Free Copper,Delrin, Acrylic, Nylon, Polycarbonate, PET, PVC, Teflon, UHMW, Waspaloy, And More Dimensions and tolerance:1): Length: <40"(1000mm); 2): Diameter:<31.5"(800mm); 3): Torerance: +/-0.0004"(0.01mm)