Listings Traveling Blocks Oilwell B500 Traveling Block 500 Ton – Used By admin 9 years ago Oilwell B500 Traveling Block 500 Ton, Wire Grooved 1-1/2″, 6 Sheaves Continue Reading Previous Horizontal Degasser, MI Swaco, Horizontal, w/Compressor, Skid Mounted – UsedNext Dual FLC-503 Derrick Shakers – Used