I found several GT dungeons in the superflat in creative mode, and found that there might be wax crates in Gem State in the warehouse that could not be opened with crowbar or unboxinator. Also, I generated crates of Blizz, blitz and basalz powder without thermal expansion, but they had no use withou…

I see you have not been updating GregTech at all recently, this seems to be a theme with you. The Wax Gem Crates have been fixed quite a while ago, and the Blizz/Blitz/Basalz Crates are intended to exist in those Dungeons.

Mechaenetia and GregTech Forum

There are sometimes crates with wrong materials in GT dungeons

Support & Questions & Bugs & Help & Requests