CH33N Carbon Brush applicable to traction motor and main generator locomotive,
high speed exciter for turbo generators, rolling mill motor and main generator, AC commutator motor
and other DC motor with difficulty of commuation.

Grade	Current Density	Resistivity	Flexural Strength	Rockwell Hardness	Contact Drop	Friction
	A/cm2	μΩ.m	Mpa	HR/10	v	μ
D104	12	58	29	83	2.8	0.2