Surface Roughness Conversion Chart. Surface roughness ot texture is the measure if the finer surface irregularities in the surface texture and is composed of three components: roughness, waviness and form.These are the result of the manufacturing process employed to create the surface.Surface roughness average (Ra), also know as arithmetric average (AA) is rated as the arithmetic average deviation of the surface valleys and peaks expressed in micro inches or micro meters.ISO standards use the term CLA (Center Line Average).hese are the result of the manufacturing process employed to create the surface. Surface roughness average (Ra), also know as arithmetric average (AA) is rated as the arithmetic average deviation of the surface valleys and peaks expressed in micro inches or micro meters.
Brock Lesnar defeated The Undertaker at WrestleMania 30, marking one of the most surprising moments in WWE history. More than 15 months later, the Deadman has returned for his rematch with the baddest man in wrestling, and itâs anyoneâs guess who will win their match at SummerSlam 2015.
What's the story? According to Wrestling Observer Newsletter, Brock Lesnar is being lined up to win the Universal Championship at WrestleMania 33. The Beast will face off against current champion Goldberg who has defeated him twice thus far in their feud, once at WrestleMania 20 and then again at Survivor Series 2016.