Aluminum Forging Standard:YS/T98, ASTM B247,ISO209, EN573 and JISH4000 Grade:2,5, ... of supplying aluminum hand and die forging products by standard YS/T98, ASTM B247,ISO209, EN573 and JISH4000 .1.Standard ... :YS/T98, ASTM B247,ISO209, EN573 and JISH4000 2.Grade: 2xxx, ...