Safco Mayline Office Furniture Montclair, CA We are an Authorized Dealer for Mayline, Alvin, Safco, Martin Universal & Studio RTA art and drafting tables.. *Not available for delivery in Ca. Alvin Workmaster Jr. Table. Hopper’s Office & Drafting Furniture, Main Office: 8827 Rochester Ave., Rancho Cucamonga, CA 91730