Materials supplied: Stainless steel, Carbon steel, Low alloy steel, Aluminium alloy, Copper ... investment casting; investment casting; water glass; lost wax;Material:Carbon steel, alloy steel, stainless steelStandards:ASTM, AISI, BS, ... ultrasonic fault detector, versatile magnetic particle flaw detector,high speed carbon-sulfur automatic analyser, metallography and scanning electron microscope, direct ...