| http://www.w3.org/ns/prov#value | - Pack rust is a form of corrosion often formed between built up steel sections because i n traditional slip joint s us ed in high mast lighting towers the accumulation of pack rust increases pressure and leads to vertical seam weld cracks in geometric tubular sections ( Ward 2009 ) Wind loads and wind induced movement generated from galloping and vortex shedding can accelerate the process of cracki
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