I would not advise contacting this organization without drawing up a contract for the repair of equipment. Although it probably won't help you. A chainsaw was repaired two years ago. they did it for about a year, despite the fact that the contract stated otherwise... Anyway, be careful, the guys are not completely mandatory...
I repaired the Boshevsky perforator, offered spare parts to choose from the original or China , chose the original, the perf works like new.
It's a long time, almost two weeks. In principle, I was satisfied.