Casting kinds of iron products like hydraulic parts, pump parts etc

  　　I'mnot saying that these things hurt your site. Adding a Flash animation towell-optimised site won't do it any harm for instance, and there are goodreasons for using these media types. But often they are used for theconvenience, or because the designer likes working that way. Now and then, I'llsee sites that are almost totally created with images. Even the text in thesite is embedded in the pictures. The text is in effect invisible to the searchengines, but if you want the text indexed, you need to put it into the site asactual text. Moreoften designers use images to create headers because it gives some more controlover the look, but it means the search engines won't read them, and headings are a very important component of a well-optimised web site. Many headers, forinstance, are an image, not text, even though they have great keywords in it. Don'timagine that the search engines will OCR the image--they won't. The text won'tbe read by the se...