DRF Patterns of California - Lowrider Plaques www.lowriderplaques.com Welcome to DRF Patterns of California Home of the World's Finest Show-Quality OG Style Lowrider Plaques & Car Club Plaques! Since 1993 Located in San Diego County, California at 524 Concepcion Ave. Spring Valley, CA 91977 Phone: 619-267-1660 Fax: 619-267-2640 Be sure to contact us for a free information package or any ...