Sport silicone bracelets marking with UPGOAL 30W Co2 RF laser marking machine Can do different marking depth with different power PS: after marking, needs to wipe with the wet cloth UCVM-k1Y6rl9XWcX9CbQsNzg laser marking #Precision #Sport #Silicone #Bracelets #Co2 #Laser #Marking #Machine #30W