... company exports various types of portable metal hardness tester. principle: Leeb hardness measurement Our company exports various ... relationship with our customers domestic and overseas.Portable Hardness Tester Standard package: Main body, impact device D, block ... materialsWide measuring range: Rockwell B&C, Brinell, Vickers, Shore and HLAutomatic conversion to Brinell, Rockwell, Vicker and ShoreTest ...