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https://www.alleima.com/en/products/bar-and-hollow-bar/rock-drill-steel/list-of-materials/sanbar-20/sizes-and-tolerances/ Sizes and tolerances for Sanbar 20 hollow drill steel — Alleima Discover the sizes and tolerances of Alleima's Sanbar® 20 rock drill steel. Engineered for strength and reliability, it ensures optimal performance in... sizes and tolerances https://www.hempel-metals.ch/fr/materiaux/alliages-de-titane/ti-6al-2sn-4zr-6mo Ti 6Al-2Sn-4Zr-6Mo various sizes and tolerances | Hempel Special Metals sizes and tolerances