HLF Co., Ltd. founded in 2001, is a private enterprise integrated with engineering, manufacturing, operation, marketing and sales. HLF has been continuously engaged in technology improvement and innovation. At present, HLF has obtained 10 patents related to the manufacture of diamond bits and has been granted the “Certificate Hi-Tech Enterprise” issued by the Ministry of Science & Technology of PRC.
 HLF possesses a strong technical force and production team who has mastered world’s advanced technology of diamond bit manufacture. Based on the rich experience accumulated in the manufacture and service of PDC bits combined with the actual status of domestic oil fields, HLF has established an unique system from design and development to manufacture and service. HLF can design, produce, and supply all kinds of diamond bits to meet customer’s different requirements for various oil and gas drilling applications. HLF 5-7/8″ to 17-1/2″ matrix and steel body bits have achieved good results in various domestic oil and gas fields, especially in the Southwest region of China where the most complex formations are encountered and most difficult wells are drilled. Meanwhile, HLF has specially developed the Versatile Series PDC bits for water drilling, geothermal drilling, mining, etc., which significantly enlarged the scope of her products. HLF’s products have been exported to North America, UK, Australia, Syria, Turkmenistan, Ukraine, Uzbekistan, Kazakhstan, India and Burma … etc. and obtained remarkable achievement.
 HLF products fully conform to the requirements of API standards and SY/T 5217—2000 Standard of China. The manufacturing process of HLF products is controlled strictly according to ISO9001 standard and API Spec Q1 quality program requirements.
 Dear customers and friends: If you need any additional information, please do not hesitate to contact us at hlf@cdhlf.com or give us a call to 86-28-83920891.