How to distinguish the quality of seals
When people buy security seals, not only consider the practicability, appearance, and most importantly is the quality and price. Then how to choose appropriate seals?
1、Surface processing technology. There are three kinds of processing technologies at surface, electroplate, spraying and painting. After surface technology, there will be protective film at surface of seals with function of anti-corrosion and anti-rust. Check if the coating is appropriate, even and color if bright, if there is bubble and oxidization.
2、Material. Normally stainless steel, copper, zinc alloy, aluminum is used. Choose according to customers’ requirements.
3、Experience weight and voice of seals. If materials used less, weight is usually light.
At what situations use seals
1.Customs open container and check. Customs need to open container or check goods one by one. And in order to tell others know it is not opened illegally, a customs seal is locked to mark. At the same time, the serial number is also recorded at customs check record book.
2.Customs transfer port. Goods need to be transferred to inland to apply customs declaration when importing from port customs.