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How is product quality controlled, and what testing equipment and certifications do you have?

Release date:

2026-08-14

Author:

Litian Hardware

Adhering to the quality philosophy of “no acceptance, no production, and no release of nonconforming products,” we use thread plug gauges and internal‑diameter pin gauges as our baseline inspection standards. Equipped with a full suite of testing instruments—including optical sorters, salt‑spray testers, spectrometers, and hardness testers—we have obtained ISO 9001 certification for our quality management system, rigorously controlling product quality at every stage to strive for zero defects.

Adhering to the quality philosophy of “no acceptance, no production, and no release of nonconforming products,” we use thread plug gauges and internal‑diameter pin gauges as our baseline inspection standards. Equipped with a full suite of testing instruments—including optical sorters, salt‑spray testers, spectrometers, and hardness testers—we have obtained ISO 9001 certification for our quality management system, rigorously controlling product quality at every stage to strive for zero defects.

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