... Assembly and Painting 5.As your drawing Large Size Metal Mechanical Parts Materialiron, stainless steel, steel, aluminum, as ... from 3 tons to 20 tons per piece 8. The casting parts can be supplied as following treatment: ... Magnetic powder inspection, UT nondestructive test, Hardness testing equipment, Mechanical property test equipment, Metallographic microscope, Direct-reading spectrometer ( function ...