Inquiry (采购产品): information We currently manufacture a portable tower that raises 21 feet. We use 2,3,4,5,6" square aluminum tubes that are approximately 62" long. We are looking to lighten the product but still maintian the strength. The website is www.portabletowersystems.com for some helpful information. We are also designing a tower that will raise to 35 feet. This is where we are really "weight challenged" Your feedback would be greatly appreciated... **** Hidden Message ***** JOE LOFFREDO PO BOX 96 1102 WINDHAM ROAD SOUTH WINDHAM, CT 06266 USA Company: WINDHAM MACHINE Title: GENERAL MANAGER Phone: 860-423-4575 Fax: 860-450-0519 E-mail: joel@windhammachine.com **** Hidden Message ***** joel@windhammachine.com