适于精冲的主要铜和铜合金
<TABLE class=table1 borderColor=#b5dba2 cellSpacing=0 cellPadding=0 width="50%" border=1><TBODY><TR bgColor=#e9fde4><TD width="52%"><DIV align=center>材 料</DIV></TD><TD width="48%"><DIV align=center>精冲适应性①</DIV></TD></TR><TR><TD vAlign=top width="52%"><DIV align=left>T2,T3,T4,TU1,TU2 </DIV><DIV align=left>H96,H90,H80,H70,H68 </DIV><DIV align=left>H62 </DIV><DIV align=left>HSn70-1,HSn62-1 </DIV><DIV align=left>HNi65 </DIV><DIV align=left>QSn4-3 </DIV><DIV align=left>QBe2,QBe1.7 </DIV><DIV align=left>QA17 </DIV></TD><TD width="48%"><DIV style="TEXT-ALIGN: center" align=center>1 </DIV><DIV style="TEXT-ALIGN: center" align=center>1 </DIV><DIV style="TEXT-ALIGN: center" align=center>2 </DIV><DIV style="TEXT-ALIGN: center" align=center>2 </DIV><DIV style="TEXT-ALIGN: center" align=center>2 </DIV><DIV style="TEXT-ALIGN: center" align=center>2 </DIV><DIV style="TEXT-ALIGN: center" align=center>3 </DIV><DIV style="TEXT-ALIGN: center" align=center>2 </DIV></TD></TR></TBODY></TABLE><P>① 1<SPAN class=blk14>—良好的，</SPAN><SPAN class=blk14>2</SPAN><SPAN class=blk14>—中等的，</SPAN><SPAN class=blk14>3</SPAN><SPAN class=blk14>—困难的</SPAN> </P>
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