ZONZEN is specialized in the production of high and low voltage switch cabinet locks, fingerprint locks, electronic cabinet locks, Bluetooth fingerprint padlocks, smart U-locks, meter box locks, communication equipment locks, file cabinet locks, hinges and handles, and other electrical cabinet accessories.
Cyclic chemical exposure test to ensure eligible corrosion resistance of materials and coatings.
Test with an extended load under sustained use to make sure service life of up to 100,000 runs.
Fireproof testing to guarantee significant flame retardant properties in fire circumstances.
Tests carried out to the sample's failure, to check the metal performance under different loads.
Tests by dropping to assess if materials and finish can reach different requirements for durability.
You are most welcome to come to visit our factory to ensure
compliance. Or 3rd party on-site factory audits are also fully
Each of our door handles, hinges, and locks are well in line with all nternational quality standards.Therefore, we are wide open to provide samples for your additional inspections and test reports issuing, as long as you need any.