... : HB 220~240 3, Production capability: More than45000tons/year 4, Material & Standard: High manganese steel, Mn14Cr2, Mn18Cr2, Mn24Cr3, Cr20, Cr24up, Carbon ... -reading spectrum instrument, metallographic analysis, ultrasonic inspection, magnetic particle inspection, mechanical properties inspection. 8, Heat treatment facilities: Special heating electric furnaces, special ...