Quality Management

Based on know-how accumulated over many years and advanced facilities, Yul-Do Co., Ltd. has continuously advanced its precision forging and high-precision machining technology for brass materials.
We supply products with high tightness, corrosion resistance, and heat resistance that operate stably even in high-temperature and high-pressure environments.

From CAD/CAM-based precision design to CNC machining, multi-stage quality inspection, and final inspection before shipment, every process is managed with a data-centered approach, realizing consistent product quality that meets ISO quality standards.

At the Chinese production base, total inspection of all products distinguishes quality from local companies, and we own many test equipment for durability, brine atomizing, water leakage, and destruction tests at a management level unmatched by local companies.

We achieve lot defect Zero through a self-inspection system with core test equipment, and guarantee 100% customer satisfaction for delivery dates through periodic inventory management and data-based demand forecasting.