efco grinding sl price
efco grinding lapping portable machines for valves. SL SERIES EFCO USA, Inc. Valve Repair & Testing Equipment. Portable grinding and lapping machines for the repair of sealing surfaces in gate valves and check valves (non-return valves) and on wedges, disks, and flanges of DN ¾″–80″ (20–2000 mm). The EFCO SL.