Specifications 1. Heavy weight drill pipe, API Heavy weight drill pipe, HWDP 2. Material: AISI 4145H 3. OD: 3 1/ 2 6 5/ 8" The wall thickness of heavy weight drill pipe is between drill pipe and....
Shanxi Weigao Petroleum Drilling Tools Co., Ltd, a private high-tech enterprise integrating scientific research, production and marketing, with years of history in the production of petroleum....
Non-magnetic Drill collars are made from Non-magnetic materials with high-strength ( YDWC20-18) or low- strength ( YDWC20-14) by combining a proprietary chemical analysis and a rotary hammer forging....