Subheading 940610: Buildings; Prefabricated, of Wood
Subheading 940620: Buildings; Modular Building Units, of Steel
Subheading 940690: Buildings; Prefabricated, not of Wood
Subheading 940610: Buildings; Prefabricated, of Wood
Subheading 940620: Buildings; Modular Building Units, of Steel
Subheading 940690: Buildings; Prefabricated, not of Wood