What does PSZ stand for?

Partially Stabilized Zirconia (SAUS)

Partially-Stabilized Zirconia - Ceramics

Partly Stabilized Zirconia (SAUS)

Piszkesteto - Hungary - Seismograph station code, US Geological Survey (SEIS)

Pressure Sealing Zipper

Pro Air Service - ICAO designator (FAAC)

Public Storage Properties XX - AMEX symbol (SPSG)

Public Storage Prop`A' XX - AMEX symbol

Puerto Suarez - Bolivia - Airport symbol (OAG)