Inquiry (采购产品): drop through air lock This a new item for us. What amount of my ground wood, would you need to spec the right air lock to pass through 5400 lbs per hour? **** Hidden Message ***** Robert Sinclair St. Louis, Mo. Company: Encore building Solutions, Inc E-mail: ercorebldgsol1@aol.com **** Hidden Message ***** ercorebldgsol1@aol.com