Junction Box for Ultra Low Temperature

Hi, i am working for a special ultra low coldroom, and the room is -60deg C. I have a special Blast Freezer coils and special fan, and I would like to wire the wiring into a junction box. I am trying to source for this special junction box for ultra low temperature. i search many website and most material (plastic) do not able to withstand such cold temperature. Anyone know where to find special junction box? Thanks in advance.

Have one made in metal?

Extend cables to outside cold space?

stainlees steel would be my option

Is there any available metal junction for purchase with IP55 onwards made somewhere in the world?? If yes, do you have brands or website??

Silumin (or inox) is your material of choice. I will give you what is available here.
Check here page 25 model MMK 7/4 or MMK7/6
Manufacturer page:www.tep.hr

Thanks nike123, i try to contact them. :)