Haian Rubber Group Co., Ltd. is a mining service contracting company integrating R & D, manufacturing, supply, service of giant mining tires, and mine truck maintenance service.Since 1985, Haian has been a leader in giant OTR tire manufacturing and mining services in China. On June 30, 2008, the first 57 inch (i.e. 37.00r57) giant OTR tire developed by the company went off the production line smoothly, which was known as “the first tire in China”.Haian possesses 100 + patents authorized by the state, including 2 invention patents. In December, 2020, 59/80R63 all-steel giant OTR tire production technology won the national “First Prize for Scientific and Technological Progress”.Haian has soly created the Giant OTR tire life cycle lean management service model. After more than 20 years of practice and continuous improvement by its project departments, the mode has achieved the goal of mining safety production, cost reduction and efficiency improvement, and won the title of “Service-oriented Demonstration Enterprise” of the Ministry of Industry and Information Technology of China.