Actually Stihl can't use Nikasil because they have their cylinders made by four different manufacturers (Mahle, KoblenSchmidt, Gillardoni, Stihl in-house) around the world and only Mahle can use Nikasil, so Stihl has to specify their own plating for all the companies to use for uniformity.
The older Jugs from Mahle will not stand up to the chrome rings either just the modern Nikasil jugs which they produce, you can tell the difference by looking at the plating at an angle and the Nikasil is slightly yellow versus grey or silver.