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Manual Rockwell Hardness Tester

Manual Rockwell Hardness Tester

DHR-150 is the most fundamental model of all rockwell types,it is favored by most customers mainly because of its mechnical and manual testing mode,which is durable and stable.
Without electrical power supply,and with simple designed appearance and single handle,it is very easy to operate,as well as economical and practical performace and wi...
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