Protable rockwell hardness gauge 1.small size,light weight 2.simple ... ,low cost 4.3 years warranty Protable rockwell hardness gauge HZ-2507A Equipment discription:PHR Series Portable Rockwell / ... HRA,HRB,HRC,HRD,HRE,HRF,HRG,HRK,HRH nine gauge choice. Test range from very soft aluminum, lead, ... the anvil and the pressure head of the installation position of exchange, but also to test the pipe wall ...