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Hello, I Want Help my company with our webpage we are "manufacturers" and "wholesale Suppliers" our products are "Transponder Keys", "Automotive Door Locks". On my keyword research on Adwords I Found "Transponder Key"  = 1600 Exact Global Searches so, long tail Keywords like "Transponder Key Manufacturer" have less Searches but are less competitive. I´m trying to Target "Transponder Key Manufacturer""Transponder Key Supplier"
"Transponder Key" Main Question, when you do SEO for webpage, all your seo campaign goes for 1 webpage, example www.example.com/new_seo_content.html or one page for groups of similar keywords like Transponder key, transponder key manufacturer, transponder key supplier