That is to say...
They were not sealed at all!
However, Gary Smith was puzzled, if the contamination from Shimmering Oil came from a Great Existence, weren't the mechanical judges afraid of capsizing?
The eight machine judges exchanged glances; even in their sealed state, their perception of the outside world had not vanished. They had also witnessed Gary Smith's actions and had quite an admiration for this lad.
Carter Lim explained, "We had already noticed that something was off with Old Watson, so we kept an eye on the Great Mechanism Cult and even obtained the method to refine the Holy Mecha Oil.