Why Choose Us？
Customer Focus
With over 20 years of manufacturing expertise, ChengDA stands as your most reliable supplier of grinding media, offering competitive pricing, exceptional quality, and comprehensive service.
Thanks to our dedicated team of professionals and the implementation of a systematic quality management system, ChengDA consistently ensures stable and outstanding product quality.
- Chengda values establishing long-term partnerships with its customers.
- Chengda adheres to a zero-defect policy, striving to become an A-level supplier for all customers.
- Through exceptional product quality, Chengda ensures enduring cooperative relationships with its customers.
The quality management system has been certified to ISO 9001:2008.
1. Quality Control at Chengda Laboratory
Chengda Laboratory’s quality assurance is based on a comprehensive internal inspection catalog. Chengda experts rigorously test materials for diameter, roundness, dimensional deviations, hardness, chemical composition, microstructure, and impact fatigue life. Material analysis for each batch of products is also a crucial component of standard inspection procedures.
Each batch of products undergoes rigorous testing, with comprehensive test reports provided:
- Spectral Analysis of Chemical Composition
- Hardness Distribution Curve (Surface/Core)
- Impact Toughness Test
- Breakage Rate Test (Target <0.5%)）
- Abrasion Test (Small Mill or Marking Ball Test)
- Metallographic Analysis (Martensite/Pearlite/Carbide Distribution)
2.Quality Control by Independent Certified External Testing Laboratories.
- To safeguard customer interests, ChengDa will arrange for quality inspections by independent certified external testing laboratories such as SGS.
Quality Claims
- ChengDa is equally a responsible supplier.
- For any goods failing to meet quality requirements, ChengDa must provide complimentary replacements at the earliest opportunity.
- We consistently stand by your side, ready to deliver optimal claims solutions.
- Resolving your concerns is our mission. This is both the foundation of ChengDa and our enduring commitment today.