Profile: Equipment & Material Exchange, Inc. supplies used fence pipe and construction steel pipe for use in horse corrals, livestock corrals, perimeter fence, vineyard end posts & other steel pipe applications. Our used pipe sizes range from 1" to 8" and are used for building fences, corrals & arenas. We also make both galvanized pipe panels and black gauge pipe panels. Our corral panels are light weight and can be easily handled. Our spinning pipe straightener is used to straighten 1 1/4" pipe through 3 1/2" oil well tubing, which has threads and couplings.