... or specified 3. Casting, Machining, Metalworking, Sheet Metal Bending, Surface Treatment, Heat Treatment, Griding, Milling, ... iron/etc.Process TechnologyCasting, Machining, Metalworking, Sheet Metal Bending, Surface Treatment, Heat Treatment, Griding, Milling ... DIN, JIS, NFQuality TesterTensile Test, Hardness test, Metal Micro-structure, Coordinate Measure, Optical Specrometer, Impact Test, ...