Inquiry (采购产品): What spring do I need? I have a 400# load to rotate 90 degrees. It's a nest of three "carts" whose CG shifts during the rotation. I'm looking for a gas spring aid to lift it. I have visual aids I can supply. What can I use? Where should I mount it? How would I compress it? My cell phone is 215-779-9173. Thanx, Paul **** Hidden Message ***** Paul Dowling 19440 USA Company: Alan Ritchey Phone: 215-779-9173 E-mail: pdowling7@comcast.net **** Hidden Message ***** pdowling7@comcast.net