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Security Chian Testing
The plating process on the surface of a safe and durable security chain is very important. A good plating process will keep the chain young forever, won't it? SALT SPRAY COMPARISON TEST: OKG security chain (A): white oxide on the surface of the chain, no red rust. Other brands (B): the surface of the chain is severely corroded, with large areas of severe red rust. The salt spray comparison test (168 hours) refers to the DIN EN ISO 9227 standard method.
