Inquiry (采购产品): 30 deg. cone depth. We have a customer with a 12 ft. diameter steel tank, with a 30 deg. cone bottom. What would the depth be on this cone? **** Hidden Message ***** Arlan Gorden 67846 Company: Hi-Plains Feed, LLC E-mail: arlan.gorden@hiplainsfeed.com **** Hidden Message ***** arlan.gorden@hiplainsfeed.com