Pemko RAMP4_ Bridge Component Ratings BHMA Certified Fire Rated - UL10C - Positive Pressure Underwriters Laboratory 4L10 Finishes RAMP4A: A - Mill Finish Aluminum Aluminum RAMP4AK: K - PemKote Skid Resistant Surfacing Aluminum Downloads Category Specification (.pdf) Pemko RAMP4_ Cut Sheet (.pdf) Pemko RAMP4_ Line Drawing Autocad (.dwg) Pemko RAMP4_ Line Drawing Autocad (.dxf) Close Interested in this product? Contact us to order Related products RAMP11_ RAMP9_ RAMP10_