Doj Marketing Specializes In Outdoor Advertising And The Production Of Display Systems For Global Advertising And Corporate Market. Our Company Has Established A Strict And Perfect Quality Assurance System And Gained A Footing In The Industry With Its High Quality Products And Great Services. Our Team Of Qualified Designers And Sign Makers Has The Knowledge And Experience To Satisfy All The Requirements Of Our Customers.. We Specialize In Signs Of All Makes And Sizes, Such As Billboards, Sale Signs, Customer Signs, Widow Signs, Wall Signs, Feather Banners, Vehicle Wrapping To Name A Few.