我把官方回应贴下
有待考证
引用自 "blodtree"
Cathy.Berergin@zf.com
Tom ,
i am not sure waht colors we are currently using for the housing. There are two version of the DG2. one has a black button and one has a grey button. The black button switches have an operate force of 75 grams and the grey buttons have a heavier force of 140Grams. The switch are currently manufactured in Japan