Safcon Seals Private Limited manufactures High Barrier Metal Security Seal. Safcon Seals Private Limited manufactures practical and effective tamper evident and high barrier Security Seals to curb tampering, theft, adulteration and pilferage. The High Barrier Metal Security Seal has unique lock design that is virtually impossible to open. The High Barrier Metal Security Seal requires cable cutter to remove. The High Barrier Metal Security Seal has Standard overall length 425 mm with 4 mm diameter strong aircraft cable.