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Friction coefficients:

Temperatures               100??   150??   200??   250??   300??
Rising temperatures        0.40    0.40    0.42    0.42    0.38
Dropping temperatures      0.40    0.40    0.39    0.42  

Abrasion ratios(V)10-7CM3

Temperatures         100??   150??   200??   250??   300??
Abrasion ration      0.13    0.14    0.17    0.23    0.57