It is my understanding (but I can not quote a source off the top of my head) that no other components were found by the ISG to have been part of a procurement designed to produce either 81mm rockets, or tubes to launch rockets, and that therefore it is nothing more than idle speculation to claim that the tubes were intended for use in rocket or artillery launch applications...
"It is my understanding (but I can not quote a source off the top of my head) that no other components were found by the ISG to have been part of a procurement designed to produce either 81mm rockets, or tubes to launch rockets, and that therefore it is nothing more than idle speculation to claim that the tubes were intended for use in rocket or artillery launch applications..."
In case anyone is wondering, I have some approximations on converting mm to inches.
They are:
81mm = 3 3/16 inch
3.3mm = Just under 1/8th inch
74 mm = 2 7/8 inch
900mm = 35 inches
This is a very rough estimation, but should still be a little useful.