Metallurgical Plant has shown that the performance of the clamping <e1>mechanism</e1> of the <e2>gun</e2> is less than satisfactory.
Metallurgical Plant has shown
Metallurgical Plant has shown that the performance of the clamping mechanism of the gun is less than satisfactory.
<triplet> mechanism <subject> gun <object> Component-Whole(e1,e2)