... /M3 or 1M3 3.standard : ISO4064 4.Pressure : PN10/PN16 Water meter : size from DN50 to DN300 .It is a full bore ... helix type,Magnetic Drive , dry Dial water meter with an intrchangeable measuring unit .It has the advanrages of ... powerline fittings, rubber sealing gate valves, fire-fighting equipments, motor & pump part, automotive & machine parts,.etc. Our company has been engaged ...