Print：Flat screen print, pad print. (monochrome/double-color print.)
Laser engraving：Surface has permanent notch by high energy laser, not effect surface pollution.
Transfer printing：Heat transfer printing.
UV ozone treatment：The photochemical reaction was occurred on sample surface by special way, it lets silicone rubber product have a layer of smooth surface, more safety and less pollution for environment compared to commercial goods heavily used by handle paint.