Service Description : Our metallurgical lab ensures the ... Our metallurgical lab ensures the quality of all our heat-treated and case-hardened components and is equipped with the following inspection capabilities-Hardness Testers.Rockwell (Zwick Roell Make).Brinell (King Tester Make) Hardness Tester.Micro Vickers’ Hardness Tester.Leeb Hardness Tester.Ultrasonic Contact Impedance Tester (UCI).GE MIC20 / Krautkramer Tester.