 to match. If the flag NX_MF_ANISOTROPIC is set, then this value is used for the primary direction of anisotropy (U axis)
		<br><br>
		<span class="parameters">Parameters:
		</span>
		<br>ID - ID number of the material.
		<br>value - Coefficient of dynamic friction. Range: [0, +inf] 
		<br>
		<br>
		<br>
		<span class="returns">Returns:
		</span>
		<br>None
		<br>
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