Chinese Intermediate-Range Ballistic Missile, M-9, by Brian McMullin, undated. The Chinese DF-15 (NATO name: CSS-6, export name: M-9) is a single-stage, solid-fuel, surface-to-surface ballistic missile system. Launched from a 8x8 Taian transporter-erector-launcher vehicle, the DF-15 can deliver a single conventional high explosive warhead over a distance of 600km. It is the mainstay of China’s conventional strategic force.