... ingot 1.dia:3.0-100mm 2.standard: ASTM B495-01 , R60702,R60704,R60705 3.certification:ISO9001:2008 SGS ASTM B550 ... ingot 1.dia:3.0-100mm 2.standard: ASTM B495-01 , R60702,R60704,R60705 3.certification:ISO9001:2008 SGSWe can produce ... hardness and high strength characteristics, widely used in aerospace, military project, nuclear reactions and atomic energy field. Quality Standard (99.95 ...