you can try derma roller derma rollers micro needle micro needles to get through more products
Main parameter: Material:GCR15,SUJ2,AISI52001 Hardness:HRC60 65 Out diameter tolerance:0.001mm Length tolerance:0.03mm Parallelism:0.01mm Perpendicularity:0.01mm Endface runout:0.01mm Roundness:0.0005mm Roughness:Ra0.06um Main uses: 1.Crossed roller bearings 2.Joint bearings ...
Factory directly selling ..offer free samples ,derma roller series such as :180pins 192pins 200pins 400pins 540pins 600pins 600pins interchangeable, 1080pins 1200pins Derma roller introduce Derma roller is an incredible device that naturally to increase the levels of the ...