標(biāo)題: ASTM A 664-2006 在ASTM規(guī)范中對(duì)電工鋼和層壓鋼級(jí)別的識(shí)別 [打印本頁(yè)] 作者: 兌水 時(shí)間: 2009-9-8 08:50 標(biāo)題: ASTM A 664-2006 在ASTM規(guī)范中對(duì)電工鋼和層壓鋼級(jí)別的識(shí)別 A664-99 Standard Practice for Identification of Standard Electrical Steel Grades in ASTM Specifications