TRONXY 3D Printer Color Change Filament Experiment! Temp test, Get 3 color change blue to white

Own 1 TRONXY filament, get 3 different color changing. Heating the water immediately turned white, adding ice cubes turned it into a very beautiful dark blue, and it remained light blue at room temperature in summer and autumn. Get TRONXY Blue to White filament on Amazon: US: DE: JP: (P.S. There is 20% discount coupon now! US only, limited quantity.)
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