Descriptions:
HFRR, Four ball test machine,HFRR High temperature grease test & Tapping Torque test m/c,HFRR Multi-Specimen test m/c & Dry Abrasion test m/c,Slurry abrasion test m/c & Pin on disc test m/c, Reichert type test m/c
HFRR, Four ball test machine, HFRR High temperature grease test & Tapping Torque test m/c, HFRR Multi-Specimen test m/c & Dry Abrasion test m/c
hfrr, four ball test machine, hfrr high temperature grease test