What is the difference between lead seal and signature seal?
Lead seal: After the goods are loaded into the container and the door is properly closed, a lock-like device applied by a specific person is called a lead seal. Lead seals can be divided into customs seals, commodity inspection seals, and commercial seals based on the person applying them. Once the lead seal is properly locked, it cannot be opened unless it is violently damaged (ie cut).
The damaged lead seal cannot be used from scratch. Each lead seal has a unique number identification. As long as the appearance of the container is intact, the container door is properly closed, and the lead seal is properly locked, it can be proved that the container has not been opened privately during transportation and the condition of the container is supervised by the packer during packing.
Signing and sealing: The documents that need to be signed are to be sealed to avoid leakage. In order to prove the integrity of the seal, a seal or stamp should be affixed to the seal. This is called signing. And, generally, the person who is in charge of the seal must sign to clearly distinguish the responsibilities. For example, seals are often used in some bidding documents.
Summary: The two have similarities, but they are not exactly the same. The effect of both is to seal, avoid theft and leaks. Compared with lead seals, the concept of seals has become more extensive. We can regard the lead seal as a kind of seal, which is a higher quality seal that is not easy to be counterfeited and damaged.