<div style="line-height:1.7;color:#000000;font-size:14px;font-family:arial">Hi<div>   I want to know more about multi-head. I didn't find any helpful information. </div><div>Is there any relevant information of details of multi-head machination£¿</div><div><br></div><div>Thanks in advance.</div><div>                                                                                        yuanyuan</div></div><br><br><span title="neteasefooter"><span id="netease_mail_footer"></span></span>