You don't have to buy directly from AliExpress in Palestine. There are thousands of people that resell AliExpress in your common street market. A huge percentage of everything you see street vendors selling is ultimately sourced from China for 2.34. The issue is that every middleman takes a bit of markup until it reaches the street. So now you're paying 10, cash, and you have it immediately.
Not just Palestine, but Gaza. The cost of getting anything, medical equipment especially, into Gaza is insanely high and it's usually an unreliable process. Thats likely why theres such a huge emphasis on being able to create the entire unit in the Gaza Strip.