31478632corbel archesPT2026-03-30 21:08:53UF31478633arches, falseNDUF31478634false archNDUF31478635arches, corbelNDUF31478636arches, corbeledNDUF31478637arches, corbelledNDUF31478638corbel archNDUF31478639corbeled archesNDUF31478640corbelled archesNDBT31472390arches by form: constructionPT