Tricone bit Cutting structure: very long widely spaced , chisel-shaped inserts and considerable cone axis offset against center line of bit ensure very high penetration rate .To secure the bit from....
Hejian Chuanda Drill Bit Manufacturing Co., Ltd. begins from 1990.It is located in Hebei Province of China. We are a professional supplier of new and used ( rebuilt) drill bits used for oil fields....
The advanced metal seal package consists of two metal seats and two elastic energizers. Compressed energizers ensure good contact being kept on two sealing surfaces of metal rings by elastic force, ....