蠕墨铸铁碳化物数量分级
<TABLE borderColor=#000000 height=128 cellSpacing=0 cellPadding=1 width=370 align=center border=1><TBODY>
<TR>
<TD width=100 height=64>
<P align=center>级别</P></TD>
<TD width=40>
<P align=center>碳1</P></TD>
<TD width=40>
<P align=center>碳2</P></TD>
<TD width=40>
<P align=center>碳3</P></TD>
<TD width=40>
<P align=center>碳5</P></TD>
<TD width=40>
<P align=center>碳7</P></TD>
<TD width=40>
<P align=center>碳10</P></TD></TR>
<TR>
<TD height=62>
<P align=center>碳化物数量(%)</P></TD>
<TD>
<P align=center>≈1</P></TD>
<TD>
<P align=center>≈2</P></TD>
<TD>
<P align=center>≈3</P></TD>
<TD>
<P align=center>≈5</P></TD>
<TD>
<P align=center>≈7</P></TD>
<TD>
<P align=center>≈10</P></TD></TR></TBODY></TABLE>
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