Bristol Mobile Offices and Commercial Units 51687 County Road 133 Commercial Modular Buildings and Mobile Offices by Mark Line Industries / MARKLINE. LEED certified to assist in planning and construction of USGBC-approved building projects and works diligently towards Green Design Bristol IN Mobile Offices and Commercial Units Mark Line Industries Inc www.marklinein.com mark line markline Mark Line Industries engineered commercial modular buildings mobile offices field offices construction trailers LEED certified planning construction USGBC-approved projectsGreen Design bristol Indiana North Carolina Pennsylvania mark line markline Mark Line Industries engineered commercial modular buildings mobile offices field offices construction trailers LEED certified planning construction USGBC-approved projectsGreen Design bristol Indiana North Carolina Pennsylvania Business Reviews Mark Line Industries Inc Testimonials