{TAIL ~ This compression} aids in preventing the frame 40 from sliding on the tie 12, and further seals {HEAD ~ the rail seat area} 18 beneath the tie pad from any incursion of moisture 
{ TAIL ~ This compression } aids in preventing the frame 40 from sliding on the tie 12 , and further seals { HEAD ~ the rail seat area } 18 beneath the tie pad from any incursion of moisture
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