Between which values does the side gap’s surface roughness vary?$

• A. >1 ¬¨¬®¬¨¬µm
• B. >3 ¬¨¬®¬¨¬µm
• C. >5 ¬¨¬®¬¨¬µm
• D. >7 ¬¨¬®¬¨¬µm