In the lubricant industry, packaging safety plays a very important role for the brand.

For the 4L F-type square tank oil packaging, the metal iron lid structure directly affects the leak-proof performance, anti-counterfeiting capability and end-user experience.
For the requirements of oil packaging:
Leak-proof sealing
Anti-vibration performance during transportation
Long-term storage stability
Oil packaging needs to be leak-proof, shock-resistant and have long-term storage stability.
The reinforced iron cover ensures stability during maritime transportation and long-distance transportation, and does not leak.

Technical highlights
This metal cap device has the following functions:
Strong torsional resistance
The seal remains stable even after multiple operations
Strong leak prevention ability
Strong sealing ability
High-quality iron covers are not a cost, but a long-term investment for stable market growth.











