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Black Diamond invites global customers to share bauma CHINA 2024 (E5.801)
Release time:
2024-11-23
Focus on hot spots
Drilling Bit Fundamentals — Reported by Heijin Gang Industrial
The performance of drill bits directly determines drilling quality and penetration rate, while also significantly impacting overall drilling costs, making them indispensable key equipment in drilling operations. Based on their structure, rock‑breaking mechanisms, and application scenarios, drill bits can be classified into several types; the most commonly used include drag bits, roller cone bits, diamond bits, and PDC bits.
Heijinangang cordially invites you to the 2026 Tibet–Nyingchi Construction Expo.
A must‑read guide to the exhibition is ready for you—please take a look!
Team leaders and above, Tomorrow’s Stars program participants, sales managers, and other key personnel gathered in the examination hall, using pen and paper as tools to put their learning into practice through testing. They conducted a focused assessment and in-depth post-exam review centered on “how to get things done,” leveraging real-world application to evaluate the effectiveness of their learning.
By examining the distribution characteristics of global tungsten mineral resources and analyzing trade in upstream tungsten ore sand and concentrates as well as midstream smelting products, this study explores the patterns of tungsten resource development and utilization and offers recommendations for the secure and sustainable development of tungsten resources.
On March 28, Changsha Heijinang Industrial Co., Ltd. successfully held its 2025 Employee Points Recognition Ceremony, at which outstanding units and employees awarded four-star, three-star, and two-star honors were solemnly commended.
