To seal the meter socket type at the base holder, with 3 holes for the installation of sealing screw and other labels such PIN, Broken SEAL, etc.

Dimensions:
Lower edge of the rim diameter: 172mm
Top edge of the rim diameter: 180mm
ring inner diameter: 170mm
Number of hole: 3
Diameter hole type seal broken seal: 4mm
Sealing screw hole diameter: 7mm
Diameter hole to seal PIN type: 11mm

Characteristics:
Made of stainless steel. Ideally the security ring may have or have a security system, closing or sealing more robust.