Under the guidance of Ministry of Natural Resources, PRC and Tianjin Municipal People's Government, sponsored by China Mining Federation and organized by Tianjin Mining International Exhibition Co., LTD., the 2021 (23rd) China International Mining Conference will be held in Tianjin Meijiang Convention and Exhibition Center from October 21 to 23, 2021. The conference will be held in the way of "online + offline". China international mining conference held since 1999, has been successfully held 22 consecutive terms, has been one of the largest in the world, one of the most influential mining exhibition, conference covers the geological investigation, exploration and exploitation, technology and equipment, investment, finance, trade in services, such as mining the whole industry chain, has become a barometer of mining industry market and development trend of industry and an indicator, It is an important platform to promote the prosperity and sustainable development of international mining industry. 2021 (23) China international mining conference by BBS, exhibition, "national promotion" and so on the main content of, in view of the hot problems of global mining face under the new situation, to the mining right, investors, technology in areas such as service providers and equipment manufacturers professional organizations, professional buyers and provides a platform of communication and cooperation. Conference forum: it is composed of theme forum and special topic forum. It is held offline and live broadcast online simultaneously.

Product introduction GYQ-200, GYQ-200A, GYQ-200B three kinds of drilling rigs are suitable for industrial and civil construction, highways, railways, bridge foundations, dam sites, water conservancy, water wells, prospecting and other engineering geological survey work, shallow oil and natural gas Mining, mine tunnel ventilation, drainage, and large-diameter foundation pile hole construction, etc. According to the different stratum, drill bits such as diamond, cemented carbide, spiral etc. can be used for drilling. This model has the advantages of compact structure, light weight, small size, and good detachability. These three types of drilling rigs are one of the rare ideal equipment that meets the needs of the new market. Main features 1. A more reasonable speed range is selected. There are eight speed levels, centralized transmission, mutual self-locking, low-speed torque, and a wide range of use. It is not only suitable for engineering geological survey, but also suitable for diamond core drilling . 2. The drilling rig has two reverse speeds, which is convenient for safe handling of faults. 3. The gyrator chuck adopts two forms of manual ball chuck and automatic centering hydraulic chuck for users to choose. GYQ-200 is a manual ball clamp type, which is reliable in clamping, does not damage the active drill rod, and can reverse the rod without stopping. GYQ-200A and GYQ-200B are hydraulic chuck type, which can clamp hexagonal active drill pipe or round drill pipe. 4. Equipped with enough instruments, it is conducive to grasp the situation in the hole, there are fewer control handles, the layout is more reasonable, and the operation is flexible and reliable. 5. The double-plate normally closed friction clutch is adopted, which is flexible to open and close, and is convenient to adjust and use. 6. The vertical shaft of GYQ-200B drilling rig has a large through hole, reaching ф93mm. 7. Equipped with a front and back moving cylinder, the gyrator moves back 465 mm, which brings a lot of convenience to the drilling tool. 8. The drilling rig is light in weight, compact in structure, easy to disassemble and assemble, and can be used for drilling in hilly or mountainous areas.