... Certificate of CE,CSA,SASO 3:Factory price anti-static brush:large anti-static brush Brush handle Material: carbon fiber composite plastics ... , 1X11 (34 Trichodesmium) Surface (volume) resistance: 106 ~ 8First, anti-static brushes this product uses the carbon fiber composite plastics processing, has ... for SMD and cleaning the surface dirt, static electricity can be generated with the earth leakage.