| Full Scale Rockwell and Superficial Hardness Tester automatic digital testing machine GL-HRS-150ZD |
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| Portable Handheld Rockwell Hardness Tester Type C GL-HYC-15-10/GL-HYC-35-20 |
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| Small Handheld Portable Rockwell Hardness Tester GL-HYC-1R |
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| GL-HYBC-187.5 Brinell Rockwell hardness tester portable hardness testing machine |
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| Rockwell hardness tester with automatic line |
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| Heightened Digital Rockwell Hardness Tester Customized equipment GL-HRS-150B |
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| Heightened electric dial Rockwell hardness tester GL-HRD-150B |
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| Fully Automatic Full Scale Rockwell Hardness Tester GL-10MHRS-150J |
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| Electric analog Rockwell Hardness Tester GL-HRD-150 |
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| Digital Rockwell and Superficial Rockwell Hardness Tester full scale GL-HRSS-150 |
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