Apart from silkscreen and pad printing, data files needs to be organized in CMYK colour mode. Keep in mind that If your setup is Mistaken, colors to the finished product or service might differ in the file you sent. Here's how to set your artwork to CMYK colour manner in https://trevorxqgvm.blogkoo.com/the-best-side-of-flyer-printing-in-choa-chu-kang-47344992