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The material of the lead seals provided by shipping companies for containers is generally Q235A low-carbon steel and high-strength steel. Therefore, the lead seals of shipping companies are often called 'high security seals'. , But a judgment.
1. The lead seals provided by shipping companies for containers are basically made of steel or a combination of steel wires and are high-strength high-speed rail and steel wires. Therefore, the lead seals of shipping companies are often called 'high-security seals ''Wire Seal'.
2. The high security seal and the steel wire seal are a kind of sealing device. Once sealed, they are locked. If you want to open, you can only break the lead seal, otherwise, you can't open the seal. Some old-fashioned lead seals can still be restored to their original state after being opened, but high-security seals cannot be restored to their original state and are very safe, so they are called high-security seals. Numbers, QR codes, logos, etc. are often printed on lead seals to facilitate management and tracking.
3. The lead seal in the container is a setting similar to a disposable lock to seal the door after loading the goods and closing the door correctly. Once the lead seal is closed, it cannot be opened unless it is destroyed by violence (usually by cutting). The lead seal cannot be reused after destruction, and each lead seal has a unique number.
So in the shipping container, as long as the container door is closed correctly, the lead seal with the fixed number is intact, and the box looks good, it proves that no one has opened the container during transportation. In summary, the safety of the container lead seal is extremely high. Shandong specializes in producing various lead seals, among which high-quality low-carbon steel seals are used for both internal and external repairs, which are durable.