File to download:
Title: An Introduction to manhole covers - PowerPoint PPT Presentation
Description: The round shape of manhole covers also has a history. This issue is rendered moot by the spherical design of manhole covers, which prevents the cover from slipping through the opening no matter how it is positioned. – PowerPoint PPT presentation
Download instruction:
When the PPT version of this presentation was uploaded to PowerShow.com, it was checked for
viruses. That said, we cannot guarantee that the PPT file is safe for you to download. But if you
whish to download it, just check that you are not a robot and then click the download button.
