Profile: Mullen Circle Brand, Inc. supplies lubricants, metalworking fluids, cleaners, greases and rust preventives. Our products include gear oil, worm gear oil, synthetic gear lubricant, chain oil, chain and cable lubricant, hydraulic oil, elevator hydraulic oil, machine oil, electric oil, buffer oil, brake oil & guide rail lubricant. Our elevator hydraulic oil is used for eliminating chattering in new and existing elevators.