All manufacturing processes and inspection works are performed by the organized quality management system and the requirements of the authorities.

Najin quality control guarantees the final products meets required specifications. Using the most modern equipment available and the strictest of techniques, quality control engineers perform chemistry and element checks, mechanical tests, and other quality control.

All products of Najin are strictly pressure tested in accordance with regulation of standard and any single product is not supplied without testing and passing it.

Keeping good quality of products and services is a direct reflection of our efforts to satisfy customers.

Product reliability and guarantee the quality of products are our last self-respect.