When sourcing shipping containers for Pakistan, the price is heavily influenced by the ISO standard dimensions (20ft, 40ft, or 40ft High Cube). You must verify the Corten Steel (SPA-H) quality, which is essential for corrosion resistance in coastal areas like Karachi. Ensure the floor thickness is at least 28mm using marine-grade plywood to handle heavy industrial cargo. For specialized needs, check the CSC plate (Container Safety Convention) validity, as this is mandatory for international shipping and affects the resale value in the local Pakistani market.