Email: zuanlongbits@gmail.com
Tel: +86-029-82612068
Fax: +86-029-82612068
Address:No 66, Changming Road, Xi'an, Shaanxi Province, China
Zuanlong supplies a variety of drag bits for many types of projects drilling needs, including 3 wings type bits for soft and medium formations, 4 wings, especially 4 wings chevron type for harder formations. Each of our bits is machined from a forging to exacting standards and then tipped with tungsten carbide. Mining grade tungsten carbide tips are brazed to the bits wing face for heavy duty bits. Then pin threads are CNC manufactured and wings surfaced hardening subsequently.
No 66, Changming Road, Xi'an, Shaanxi Province, China
+86-029-82612068
+86-029-82612068