Sheet Metal Union Hawaii - Web we will continue to instill a deep sense of pride for everyone in our trade. Smca works with our partners at the international association of sheet metal, air, rail and transportation. Hsmw is part of the sheet metal workers´ international. Established in 1961, the sheet metal contractors association (smca) of hawaii is a statewide trade association.
Hsmw is part of the sheet metal workers´ international. Smca works with our partners at the international association of sheet metal, air, rail and transportation. Established in 1961, the sheet metal contractors association (smca) of hawaii is a statewide trade association. Web we will continue to instill a deep sense of pride for everyone in our trade.