حفاری سنگ  تولیدکنندگان، عرضه‌کنندگان، توزیع‌کنندگان

Gühring ist heute einer der weltweit führenden Anbieter von Werkzeugen für die rotierende Zerspanung: Bohrwerkzeuge, Tieflochbohrer, Gewindewerkzeuge, Fräswerkzeuge, Reibwerkzeuge, Senkwerkzeuge, Diamantwerkzeuge sowie modulare Werkzeugsysteme. Das aktuelle Produktprogramm umfasst insgesamt über 1620 verschiedene Werkzeugsorten mit mehr als 44.000 verschiedenen Artikeln.
Die Werkzeugentwicklung erfolgt in einem hochmodernen Forschungs- und Entwicklungszentrum. Außerdem gehören eigene Bereiche für die Entwicklung und Fertigung von Hartmetallen und Beschichtungen zum Unternehmen. Die Division Dienstleistung bietet Service rund um das Werkzeug bis hin zum kompletten Tool Management.
Hergestellt werden die Werkzeuge in insgesamt 31 Produktzentren im In- und Ausland. Für die Dienstleistungen in unmittelbarer Nähe zu unseren Kunden stehen außerdem 36 Dienstleistungszentren weltweit, davon 9 in Deutschland zur Verfügung. Darüber hinaus wird Gühring weltweit durch mehr als 43 Ländergesellschaften bzw. Vertriebsbüros repräsentiert.

Sandvik Mining and Construction is a business area within the Sandvik Group and a leading global supplier of equipment, cemented-carbide tools, service and technical solutions for the excavation and sizing of rock and minerals in the mining and construction industries.
We also offer solutions for many applications in the construction industry, including surface rock excavation, tunneling, demolition, recycling and road rehabilitation.
Our range of products includes rock tools, drilling rigs, loaders and trucks, crushing and screening machinery and bulk-materials handling systems.
Every product is preceded by extensive R&D and backed with application expertise and a worldwide service network offering on-site service, training and round-the-clock support.
We have a tradition of localization and a conviction that there can be no substitute for direct service and direct contact with our customers. Our service-oriented, global organization is well-developed and has more than 3500 service technicians located strategically around the world, working for our customers.
Annual sales 2009 amounted to about SEK 32,600 M, with approximately 14,400 employees. Sandvik Mining and Construction has operations in more than 130 countries.

Chengdu Prospecting Machinery Factory is an old factory established in 1956, which is an institution subordinate to Sichuan Geological and Mineral Exploration and Development Bureau, and is now located in Jinniu Hi-Tech Industrial Park, Tianhui Town. It is a professional factory producing brazing tools in China, integrating research, design, production and marketing.
"Cheng Tan" is a famous trademark of Chinese rock drilling tools, which is a necessary drilling tool for all kinds of pneumatic, hydraulic, electric and internal combustion rock drills, and is widely used in rock excavation and blasting projects in metallurgy, mining, coal, railway, transportation, water conservancy, electric power and other industries.
The drilling tools have won the Third Prize of National Technical Progress, the Golden Dragon Prize of National New Excellent Products, the First Prize of Major Scientific and Technological Achievement of the Ministry of Geology and Mining, and the Fourth Prize of Major Scientific and Technological Invention of the Ministry of Railways. ". In the successive product quality supervision and sampling tests conducted by the State Bureau of Technical Supervision, Cheng Tan's brazing bits were all qualified and ranked first for three consecutive times. The brand of "Cheng Tan" is well known at home and abroad, and the products cover more than 2400 specifications, including hobbing bits, disc-type hobbing bits, reaming bits, eccentric reaming drilling tools, ball-tooth bits, easy-return bits, reaming guides, hollow bits, one-piece bits, cross bits, diamond bits, brazing tails, connecting sleeves, connecting rods, connectors, tapered brazing rods, threaded brazing rods. connectors, tapered brazing rods, threaded brazing rods, etc.
In 1986, Chengdu Exploration Machinery Factory was named as a professional factory for exporting new carbide brazing bits by Sichuan Province, and in 1988, it was approved as an "Import and Export Enterprise of the People's Republic of China" by the Ministry of Foreign Economic and Trade of the State Council's Mechanical and Electrical Office. In 1997, it was granted the right to export and passed the ISO9001 quality system certification and obtained the Beijing 9000 standard and the British Crown Mark certification. In 2001, Cheng Tan Factory was awarded the title of "2001 A Grade Honorable Enterprise of Foreign Exchange Receiving Work" by the Sichuan Branch of the State Administration of Foreign Exchange and the Sichuan Foreign Trade and Economic Cooperation Department. In 2003, Cheng Tan Factory was also awarded as "Top 30 Best Benefit Enterprises of Special Equipment Manufacturing Industry in Sichuan Province" by Sichuan Bureau of Statistics and Sichuan Economic and Trade Commission. The "Cheng Tan" brand brazing tools have also won the Third Prize of National Scientific and Technological Progress, the "Golden Dragon Award" of National New Products and the "Fourth Prize of Major Scientific and Technological Invention" of the Ministry of Geology and Mining. In the successive product quality supervision and sampling tests conducted by the State Technical Supervision Bureau, the "Chengdu Exploration" brand brazing tools have passed and ranked high.
Chengdu Exploration Machinery Factory staff to science and technology, strengthen management, and strive for first-class as the goal, to speak of credibility, service, service to society as its responsibility, willing to cooperate widely with friends from all walks of life, seek development, and create a better tomorrow.