金属硬度试验计
scleroscope hardness tester
布氏硬度试验机
brinell hardness tester
Brinell testing machine
brinell apparatus
ball hardness testing machine
Brinell hardness testing machine
锤击式布氏硬度试验机
Brinell impact hardness tester
摇臂布氏硬度试验机
radial arm Brinell hardness tester
金属洛氏硬度试验
metallic rockwell hardness test
洛氏硬度试验顿钻
Rockwell hardness machine
轻压力洛氏硬度试验机
superficial Rockwell hardness tester
维氏硬度试验
Vickers hardness
Vickers hardness experiment
Vickers hardness test
维氏硬度试验机
Vickers hardness tester
diamond pyramid hardness machine