4inch Three Wing Diamond PDC Drill Bit for Drilling Underground Water Wells

Hanfa Group established in 1998 is a key enterprise in the industry of geological exploration and water well field, with the ability to research, manufacture and market.

Presently, it has three subsidiaries which are Zhengzhou Hanfa Prospecting Machinery Co., Ltd, Zhengzhou Hanfa Imp & Exp Trading Co., Ltd, HK Hanfa Imp & Exp Trading Co., Ltd. It has experienced engineers, professional R&D team, special after service team, world class sophisticated equipment and advanced technology guarantee the best quality drilling equipments and best service to its customers.

Hanfa Group perennially committed to the development, production and sales of drilling machine, mainly including water well drilling rig, core drill, DTH drill, rotary/piling rig, trenchless centering drill, hydraulic tunnel drilling rig, etc. Hanfa Group send all kinds of drill for the global market, the products are sold to all over the world, exports more than 60 countries and regions, is the leading brand of drilling rig in China. At present, Hanfa Group built Beijing, Tianjin, Shandong, Hubei R&D and manufacturing base.

Hanfa Group always adhere to the "two audit", one is must through the international authoritative certification bodies's audit; The second is needs to be approved by customers and the public. It is also true, Hanfa Group, all kinds of drilling rig, has passed the ISO9001: 2008 and ISO9001: 2000 quality management system, the national military standard GJB9001-2001 and ISO14001-2004 environmental management system and GB/T28001-2001 occupational health and safety management system certification, CE and other international well-known certification bodies audit and certification, obtained the international recognition of authority;

At the same time, the development of the new and old customers, numerous customers from all corners of the world's praise, confirming the quality of Hanfa products is already deeply rooted in the hearts of the people, pass the "audit" of masses of the people. High quality is the the faith and the most basic bottom line of Hanfa Group since it founded twenty years ago. For more than 20 years, the countless praised, care, support have been produced a large web of trust, like the Hanfa's reputation today, global coverage, influence the world.

Hanfa Group do not forget good service while in adhere to the quality. In Hanfa Group, the quality is the root, service is the source. Hanfa Group, after long-term development, formed a very perfect service system, the service system covering the pre-sale, sale, after-sale three important links, fully satisfy the customer service requirements at different times, leave no dead angle of service to the customer. Hanfa Group has a strong service team, including 30 senior engineers, more than 50 technical personnel, hundreds of after-sales service personnel. After many years of accumulation, the service team had rich experience, is the most perfect service industry, service quality of the best team. Hanfa Group, has send technicians abroad to after-sales service more than 20000 times, operation training for more than 10000 times, machine repair about 5000 times...Large and small data, not only explain Hanfa has send thousands of customer operation method, construction technology, drilling technique, machine maintenance knowledge, the fault of the machine function again...But also record with the brilliance of Hanfa's service team, the footprints on the road, confirm the powerful strength and service quality of Hanfa Group.