8(b)(4)(B)
To force or require any person to cease using, selling, handling, transporting, or otherwise dealing in the products of any other producer, processor, or manufacturer, or cease to do business with any other person, or force or require any other employer to recognize or bargain with a labor organization as the representative of his employees unless such labor organization has been so certified.
To force or require any person to cease using, selling, handling, transporting, or otherwise dealing in the products of any other producer, processor, or manufacturer, or cease to do business with any other person, or force or require any other employer to recognize or bargain with a labor organization as the representative of his employees unless such labor organization has been so certified.