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Breakthrough in quality standards for door lock springs

Clicks：      time：2026-08-20

We continuously innovate and develop during our growth process to constantly improve our corporate competitiveness.

The company consistently invests appropriate funds in R&D and innovation every year to create a larger technological space and embrace a bigger market.

The following door lock springs are molded from two types of materials, square wire and round wire. After innovative R&D from the UL 228 US (100,000 cycle test), the product has now reached the Grade 1 standard (1,000,000 cycle test) of the ANSI/BHMA A156.17-2004.

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