Our commitment to quality is supported by our own testing laboratory, which has state-of-the-art testing and analysis equipment. It carry out the strictest quality control and run performance trials.
DDZ persists in "pursuing zero-fault and providing satisfying products and service for customers." It concentrates on quality management and gains authorized certification. Product performance is stable, safe and green complying with international requirement. Stability and reliability of products in batches gain is highly recognized by the market.
Quality Control Flow Chart
What we trace:“Time, Material, Technology, People, Machine”
2) Ensure the products quality
3) Satisfy the customer