<P 0cm 0cm 0pt; mso-pagination: widow-orphan">无沟丝攻主要有适用于非铁合金<FONT face="Times New Roman">(</FONT>铝、铜、亚铅合金、铝压铸品等<FONT face="Times New Roman">)</FONT>用与钢铁<FONT face="Times New Roman">(</FONT>一般碳钢、压延钢、不锈钢等<FONT face="Times New Roman">)</FONT>用二种类。<p></p></P>