International Sheet Metal Union
The international association of sheet metal air rail and transportation workers smart a north american labor union headquartered in washington d.
International sheet metal union. The sheet metal arm of smart formerly the sheet metal workers international association represents 136 000 members in the sheet metal and related trades. In shops we layout fabricate and assemble sheet metal products. Our members are part of the building and construction trades. 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.
C was chartered by the afl cio in 2013.
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