Founded in the 1980s, Chengde Rongmao Cast Steel Co., Ltd. is located in Kuancheng County,Chengde City, Hebei Province. After 30 years’ rapid development, Rongmao’s factory totally covers 82,000 square meters, among of that 35,000 square meters workshop. Currently there are 400 employees, including 80 technicians and 30 senior staff. Now it owns 230 million yuan fixed assets, producing 80,000 tons casting parts annually and the annual production value reaches 600 million yuan. Rongmao specializes in producing large SAG mill multi-alloy liner, ball mill liner, CADI (carbide austempered ductile iron) grinding ball, B2/B3 forged steel ball, low/middle/high chrome mill ball, bimetallic crusher hammer, various models of jaw crusher liner, hammer crusher liner, and a variety of wear-resistant products. Rongmao combines independent and open R&D together, it has cooperated closely with Hebei University of Technology, Beijing University of Technology, Tianjin Polytechnic University. Its Lab has a total investment of 17 million yuan, and the construction area covers more than 1,300 square meters. Being equipped with the most advanced automatic casting production line, sophisticated physical-chemical analysis and testing equipment, Rongmao's product quality reaches international leading level. Scientific management and advanced techniques help company take the lead to pass the International Management Quality System Certification of ISO9001 and International Environmental Management System Certification of ISO14001.