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Sheet metal international association.
Smart the international association of sheet metal air rail and transportation workers is one of north america s most dynamic and diverse unions with 216 000 members.
Sheet metal the sheet metal arm of smart formerly the sheet metal workers international association represents 136 000 members in the sheet metal and related trades.
The sheet metal workers international association was a trade union of skilled metal workers who perform architectural sheet metal work fabricate and install heating and air conditioning work shipbuilding appliance construction heater and boiler construction precision and specialty parts manufacture and a variety of other jobs involving sheet metal.
Prevnext smart the international association of sheet metal air rail and transportation workers is one of north america s most dynamic and diverse unions with 203 000 members.