... d) we are factory 1. name: 90 degree steel tube corners2. feature: steel tube corners , tube fitting elbow , tube steel fitting3. machining: CNC lathe, auto lathe, milling4 ... different materials, including alloy, stainless steel, copper, aluminium, etc.Our machinesCNC lathes, auto lathe, CNC mills, general mills, drilling machines, tapping machines ...