As a member unit of the Aviation Industry Group, we specialize in manufacturing pneumatic tools, granite measuring instruments, fully hydraulic pit drilling machines, textile machinery, and 3D printing products. Our company adheres to the principle of "aviation serving the country, strengthening the military, and enriching the people", practices the concept of "dedication, integrity, innovation, and transcendence", and always occupies the high ground of the industry. On June 7, 1969, a state-owned outpost machinery factory (3337 Factory) was established in Qingdao, which was converted from Qingdao Aviation Industry School. After forty years of development, the company has become a technology intensive enterprise that integrates science, industry, and trade. It is a national second tier enterprise, a national first level measurement unit, and a high-tech enterprise in Qingdao. The company's main products include five categories: pneumatic tools, precision measuring instruments, fully hydraulic pit drilling machines, textile machinery cam opening devices, and 3D printing series products. It is a designated research and production member unit of China Aviation Industry Corporation for pneumatic tools and precision measuring instruments. Qingdao Qianfeng Mining Technology Equipment Co., Ltd. is a subsidiary of China Aviation Industry Corporation and a subsidiary of Qianfeng Precision Machinery Co., Ltd. Mainly engaged in fully hydraulic tunnel drilling machines; Development, production, and sales of electromechanical and mining engineering equipment and mechanical components, as well as providing technical consulting services. The company is a high-tech enterprise in Qingdao, a harmonious labor relations enterprise in Qingdao, and a contract abiding and trustworthy enterprise in Shandong Province. The company has obtained ISO9001 quality system certification and developed a fully hydraulic tunnel drilling rig, which is specifically designed for deep and peripheral exploration in resource poor mines. It can also be used for field surface exploration. The product has the characteristics of small overall size, light weight, easy relocation, low labor intensity for operators, and high drilling efficiency. The drilling diameter range of the drilling rig is from φ 36 to φ 95mm, and the drilling depth can reach 800 meters.