<div style="line-height:1.7;color:#000000;font-size:14px;font-family:Arial"><div style="margin: 0;">Dear all, </div><div style="margin: 0;"> I have a question. When I set top roof as external catagory, what should I set these parameters and how to set orientation£¿</div><div style="margin: 0;"><img src="cid:162e997b$1$181c8d0dd3b$Coremail$pdhvac$126.com" orgwidth="494" orgheight="417" data-image="1" style="width: 494px; height: 417px;"></div><blockquote id="isReplyContent" style="PADDING-LEFT: 1ex; MARGIN: 0px 0px 0px 0.8ex; BORDER-LEFT: #ccc 1px solid">
</blockquote></div>