Donald Cohen
Surface Metrology/Tribology
4.78 (119 reviews)
1
active courses
13
removed courses
Apr 2020
first content date
Oct 2022
last content date

906
total students
119
total reviews
4.78
average rating
30
total content length
Courses

Surface Roughness, Texture, and Tribology Full Course
73
students
11.5 hours
content
Oct 2022
updated
$219.99