... 2.Process: CNC machining 3.Tolerance: 0.02 Indutrial Engineering Machinery Parts Details: Material 301, 302, 303, 304, 304L, 316, 316L ... , ISO9001-2008 Quality Assurance System, the USA UL.4. Products covering hydraulic cylinders, pistons, flanges, valves parts, casting and forging parts ...