What was the main goal of the taft hartley act
to place limitations on unions act
do you allow unions to go on strike at any time
to limit power and of companies in labor negotiations

I think it would be To limit power and of companies in labor negotiations.  This act is created to grant both the employers and their employees to have equal rights. It helps lessen labor abuse and unfair payments. It sought to protect the safety of the labor force and to protect companies from being abused by radical labor unions.