Watson Grinding & Mfg 4525 Gessner Houston, TX 77041 713.466.3053 Fax: 713.466.8992
Determined by using a Rockwell Hardness tester. The hardness value is determined by the depth of penetration of the indenter. ASTM E18. *Test within scope of A2LA Accreditation ISO 17025:2005 Cert.# 3390.01