Changzhou Liyu spring Co., Ltd qualitätskontrolle

Strict Quality Management System & International Certifications

Quality is our top priority. We have established a comprehensive quality management system and strictly follow international standards throughout our production and inspection processes to ensure consistent performance and reliable product quality.

Our company is certified under internationally recognized quality management systems such as ISO 13485 ,ISO 14001:2015,IATF 16949,, and we can provide relevant certificates and test reports according to customer and industry requirements.

Throughout the entire manufacturing process, we implement strict control over raw material sourcing, production procedures, in-process inspection, and final product testing. Advanced testing equipment is used to verify dimensional accuracy, load performance, fatigue life, and surface quality, ensuring compliance with customer specifications and industry standards.

With a strict quality assurance system, our products are widely used in automotive, electronics, medical, and industrial applications, earning long-term trust from global customers.