Detailed Product Description Model 2302 surface profile tester is a fully integrated surface geometrymeasuring instrument which comprises the surface roughness, ... ,Rq,Rtm,Rt,Rpm, Rvm,Sm,S,D,Sk,Rku,q,a,λq,R3y,R3z, NR1, NR2,tp (8) Graph analysis: profile--NR ...