can someone please tell me the difference between 433 & 509? i know there are 3 local ironworker unions in the LA area. i know the 416(rebar) i have family that worked with them. i just dont know 433,509. i live in the IE. is one of them maybe for the IE or what? im looking to join the ironworkers union just want to know which union local to join.
thanks
octavio