The coal mine drilling shaft wall is a single-layer structure. and water leakage in the deep alluvium will seriously threaten mine safety. If there are construction defects in the stubble part of the well wall at the construction stage. it will lead to groundwater corrosion and rust through the metal and the weld seam of the stubble part. https://www.roneverhart.com/K-N-63-Series-Cold-Air-Intake-Dodge-Ram-5-7L-Hemi-2009-2010-Ram-5-7L-Hemi-2011-2018/