What is Chuzhou Nanhu Park built of?

Chuzhou Nanhu Park is built with bricks, sand, stones, cement, wood, tiles, precast or cast-in-place concrete slabs, steel bars, etc. Chuzhou Nanhu Park, also known as Nanhu National Urban Wetland Park, is a part of Chuzhou moat. There is an island in the center of South Lake, which tourists can visit. This park is located in the south of the old city of Chuzhou, and is called Nanhu Park by the locals.