2006DIN 28138-3:2006-06 Rotating mechanical seals for agitator shafts - Part 3: Connections for barries fluids, cooling, control and mounting and designation system for rotating mechanical seals
2006DIN 28138-3:2006 Rotating mechanical seals for agitator shafts - Part 3: Connections for barries fluids, cooling, control and mounting and designation system for rotating mechanical seals