Color mixing the ugly duckling

This is to optimize the color mixing nozzle upgraded versions of double a Xin Chuang Ke Ji.
It can simultaneously use two kinds of different color 1.75mm supplies.
The fast heating heating melt mixing of colors, a nozzle extrusion.
Using Y for two inlets and one outlet.
The source of the product:
http://item.taobao.com/item.htm?id=42988722363#
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