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Hard-alloy seats for the valves of Deep-Shaft pumps

✍ Scribed by L. M. Shapiro; L. A. Yankelevich

No coin nor oath required. For personal study only.

📜 SIMILAR VOLUMES

Use of tungstenless hard alloys for the

✍ T. A. Vorob'eva; G. V. Dubko; A. I. Varenov 📂 Article 📅 1979 🏛 Springer 🌐 English ⚖ 136 KB