Black Whirlwind Engineering Machinery Development Co., Ltd. It was established in 1953, whose first name was Zhongnan metallurgy machinery plant. In August of 2000, Yichang Black Whirlwind Engineering Machinery Company Ltd. was joint ventured by General Metallurgical Geological Survey Bureau invested by 52% of stock and Zhongnan Geological Survey Bureau invested by 48% of stock, whose registered stock would be 222.248 million Yuan (RMB).

Our company includes 390 staff at present, in which grade of professor engineer will be 2, senior engineer will be 2, 34 for engineer and associated technician. We have a large amount of technician with high quality as well as excellent ability of research and manufacture, then we have kept along with some research institute and industrial institution in cooperation and interchange. It will be a specialized manufacturer of pressure grout injection, mud handling device and dirt clearring device.