- We are a Korean Sole Proprietorship company in Qingdao China, our headquarters has set up to manufacture chains since 1962 in South Korea; 6 Korean technicians were dispatched here to control all the production lines and assure the chain quality, with Korean advance technology and modern equipments, our QingDao Dong Bo Chain Co., Ltd. has approved ISO Certificate, JIS Certificate and KS Certificate during the past 5 years, we are exporting our DBC brand chains to over 70 customers all over the world.

- Our production capacity approximately extends to over 1,500 kinds of chains for various industrial fields, such as ANSI/BS Standard Power Transmission Roller Chain, Conveyor Chain, Leaf Chain, Agricultural Chain, Motorcycle Drive/Cam Chain, Automotive Timing Chain, Double Pitch (Attachment Chain), etc.

We sincere hope to establish a new business relationship with your esteemed company.