l_union_codes_and_names: 21

This data as json

code	union_name
21	Iron Workers, Intl. Assn. of Bridge Structural & Ornamental - BSOIW

Links from other tables

526 rows from petitioner in r_master
271 rows from recogn_union in r_master
322 rows from union_lost_intl_1 in rc_elect
4 rows from union_lost_intl_2 in rc_elect
0 rows from union_lost_intl_3 in rc_elect
0 rows from union_lost_intl_4 in rc_elect
204 rows from union_won_intl in rc_elect