You can make neutral, complementary, or primary gray using polymer clay. Choose whichever option appeals most to you.  If you want to create a pure gray without any tint, it's best to create a neutral gray. If you do want to tint the gray, though, primary or complementary grays can simplify the process and reduce your overall number of supplies.

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Write a summary of the previous text in Vietnamese:
Chọn loại xám bạn muốn pha.