Include your e-mail if you'd like us to get back to you.
We've received your feedback, thank you!
diamond pyramid with 130o angle, used at Vickers and Martens hardness tests (see: Vickers hardness, Martens hardness), teemantpüramiid tipunurgaga 136o, mida kasutatakse Vickersi ja Martensi kõvaduskatsetel (vt Vickersi kõvadus, Martensi kõvadus)
