... have the ability of manufacturing many types of specail board. The products are including Al base, Iron base, ... Brass base, steel base, Ceramic and Teflon Board. Typical Feature . Standard dimension: 490x8857; 490mm 600x8857; 500mm ... foil thickness: 35um, 70um, 105um, 140um, 210um . Heat conduction and insulating layer thickness: 60um Application Motor, auto-bicycle Trigger, voltage ...