Qingdao Yidong Coal Mine Machinery Manufacturing Co., Ltd. is an entity manufacturing enterprise that focuses on product quality as the core, seeks development through innovation, centers on customers, survives by service, and guarantees by reputation. It is a national high-tech enterprise, a Qingdao specialized, refined, characteristic and innovative enterprise, and a credit-rated AAA enterprise. Founded in 2004, the company is one of the earliest manufacturers of mining connecting links in China. After nearly 20 years of development, the YD brand mining flat sawtooth connecting links, mining flat arc tooth connecting links, vertical connecting links for mining chains, flat connecting links for mining chains, and carburized connecting links for slag skimmers produced by Qingdao Yidong Coal Mine Machinery Manufacturing Co., Ltd. are widely recognized by users. Yidong Mining Machinery is committed to the front-end design and quality control of products. All connecting link products are independently designed and developed, and 3D design and 3D printing technology are used for product simulation. The forging molds for the connecting link series products are all independently designed and manufactured, and the product quality meets and exceeds the MT/T 99 – 1997 and DIN22258 standards. In the field of mechanical processing, we provide customers with professional, comprehensive and precise one-on-one services. From front-end product design, to process formulation, processing and manufacturing, quality process control, product acceptance and after-sales service for non-standard products, we achieve full-process collaboration. Our philosophy is openness, inclusiveness, innovation and excellence. Because of openness, we can be inclusive; because of inclusiveness, we are enlightened and wise; because of innovation, we can pursue excellence.