China DHK Group was established in 2001. We are ISO-9001 certificated company. We focus stable high quality and professional service as well as reasonable price. Supported by our very strong & professional engineering team and good equipped quality research center, we are the right company to supply our customers with very stable high quality products, non-standard bolt, non-standard bolts and professional service. Also we are no problem to fully understand and develop custom requirement. We control our production, non-standard bolt, non-standard bolts and quality process according to ISO standard and also no problem to follow PPAP III. We always submit samples according to ISIR. We are exporting more than 70% of our products, non-standard bolt, non-standard bolts to both Europe and USA, some of them go for OEM customers like GE, GM, Ford, etc.