1. Drill bits

drill bits and PDC bits which used on the oilfield and water well, the sizes: 5 7/8"--17 1/2"(both insert drill bits and steel tooth bit)

2.Drill pipe

Accord with API 5D latest edition .Has been awarded the certificate for compliance with standard ISO 9001-2008 GB/T 19001-2008.
Steel Grade: E-75, X-95, G-105, S-135
O. D. Range from 2"(60.3mm) to 6"(168.3mm)

Type: Internal Upset, External Upset, Internal and External Upset. With competitive price and high quality.