Inquiry (采购产品): thick, stiff, panel I'm trying to find a panel for an outdoor application. Large volumes. 1 x 1 x ~0.1 m 1M per year. Stiffness is important. Flatness only needs to be fair. Has to last 20 years outdoors. No sun, but moisture could happen. **** Hidden Message ***** John Fitch CA 94043 USA Company: Google E-mail: fitch@google.com **** Hidden Message ***** fitch@google.com