Inquiry (采购产品): magnetic strength I know that your 30mil sheet magnetic material I use for vehicles is 12 poles per inch. I want to compare it to another material and all the info I can get from them is the strength is 85 lbs per s.f. I am having trouble with customers complaining the magnetics fly off too easy and one customer said they just fell off as he was standing there. I know, I ask them all the time if they are caring for them properly and if they have body work on the vehicle, which they deny. I want to know the lbs. per s.f so I can compare other products. Thank You **** Hidden Message ***** Connie Vinson 34471 Company: Budget Print Center E-mail: budgetpt@atlantic.net **** Hidden Message ***** budgetpt@atlantic.net