Thanks for the clarification guys

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I was thinking that perhaps the WZ-10 in the photo only look "white" (rather then "grey") due to the camera's exposure settings, but from what was said above, that's probably not the case.
... now, not trying to imply that the PLAN might/could/should field WZ-10 for anti-piracy patrol. Is there any advantages for using gunships like the WZ-10 for anti-piracy role? Or, would helicopters like Z-9 (armed for the task) be more then sufficient? Basically, I am interested in knowing if any of the other nations participating in anti-piracy patrol off the coast of Somalia have use gunships or have considered using them there? In a way, are gunships expensive to operate for this kind of operation?