Options for drilled rotors for the rear on my 2007 S550?

Not buying solid rotors if there are no drilled ones, and already ordered The Castrol Transmax that has the Mercedes spec and is loved here so much.
 
Came today and they look very nice. Match the front rotors perfectly.

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Can you tell who makes them from those numbers?

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Those holes are worthless. Why? Discs are drilled to allow gases to escape via the disc's center ventilation "ribs," Pads generate gas as they heat up. Remember: energy can neither be created or destroyed, but merely transformed.
 
Those holes are worthless. Why? Discs are drilled to allow gases to escape via the disc's center ventilation "ribs," Pads generate gas as they heat up. Remember: energy can neither be created or destroyed, but merely transformed.
Well he did say he was going for looks….
 
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