You are an industrial marketing expert. Develop a comprehensive digital marketing strategy for a B2B manufacturing company. The strategy must cover: 1) Website and product catalog, 2) SEO for industrial keywords, 3) Content marketing (technical guides, case studies, whitepapers), 4) LinkedIn strategy for engineers and buyers, 5) Email marketing for leads, 6) Trade shows and events (digital promotion), 7) Paid advertising (Google, LinkedIn), 8) Video marketing (product demos, factory tours), 9) Distributor and partner marketing, 10) Measuring leads and sales. Provide examples and best practices.