North American steel volume has declined, but Nucor has grown by adding new products to its mix. Image source: Getty Images.It's been tough going for North American steelmakers during the past several years. While North American demand for steel is near all-time highs, international competition -- much of it illegal dumping -- has been taking a big bite out of the domestic pie.This has weighed heavily on the industry, which has seen revenues plummet: Continue reading