Impossible to answer without a DETAILED DESCRIPTION OF ALL MARKINGS, barrel length, finish, condition, gauge, box, papers, who made it, etc..
what do you mean by Ra and Rz values
Approx - Rz is 4 times of Ra
i don't know because I'm suppose to answer it in my science project and can't figure it out.!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!thank you; for NONE of your HELP!!!>:[[[[
vdi is Visual data index ,which is measured in the value of Ra for the roughness measurement.
average roughness, or Ra, are expressed as microinches or micrometers (aka microns). given that your value is '50', i'd assume that the units are microinches if you're talking about a polished surfaces. your best bet is to contact the source that gave you this value and confirm the units. Ra is not a unit of measurement; it is a quality that is measured. unfortunately, you will experience this dilema again and again.
ra ra ra ra ra ra ra ra ra ra ra ra ra cheater cheater cheater cheater cheater cheater cheater cheater cheater cheater cheater cheater ra ra ra ra ra ra ra ra ra ra ra ha ha ha ha ha ha ha ha ah ah ah ah ah ar ar ar ar ra ra ra ra ra t(._.t)
4
Ra 3.2 basically mean the surfaces must be machined to a tolerance of 3.2micro metres > Ra 3.2 would mean a standard finish on a lathe or miller ie not a deliberate finishing (slow speed) cut.
Ra Ra Riot was created in 2006.
Mummies Alive - 1997 Ra Ra Ra Ra 1-1 was released on: USA: 15 September 1997
http://www.innovativeorganics.com/Media/Documents/S0000000000000001030/SURFACE%20ROUGHNESS%20VALUE%20CONVERSIONS.pdf
ra-myeon. or ra-myun. its not ra-men nor ra-myoon its like ra. me. on.