CPC Subgroup
E04C 3/32 of metal (E04C3/36 takes precedence)
Full Title
Structural elongated elements designed for load-supporting (as building aids E04G) > Columns; Pillars; Struts (not designed for end loading E04C3/02; posts, masts, as independent structures E04H12/00) > of metal (E04C3/36 takes precedence)