✦ LIBER ✦

Composite seal for rotary cone rock bits

No coin nor oath required. For personal study only.

📜 SIMILAR VOLUMES

Second-order explicit integrator via com

✍ Endres, L. ;Krysl, P. 📂 Article 📅 2007 🏛 John Wiley and Sons 🌐 English ⚖ 473 KB

Optimum bit geometry for rotary drilling

✍ I.I. Kulishenko; V.I. Kovalev; V.F. Vasilchenko 📂 Article 📅 1978 🏛 Elsevier Science 🌐 English ⚖ 98 KB 👁 1 views

Experimental study of drillability for r

✍ Zhu Shao-tong 📂 Article 📅 1990 🏛 Elsevier Science 🌐 English ⚖ 112 KB 👁 3 views