Were ancient bows and arrows made of bamboo?

For single bow, ancient China generally used hard and elastic wood such as Zhemu, Scarab, Oak and Cunninghamia lanceolata. After being cut down, it needs to be dried in the shade and wait for the wood to be tight. Bamboo bow is the worst material, and Japan's big bow is made of bamboo, so it can be seen that the generals in Japanese films can't fall down with arrows. The compound bow is complicated, and it is not necessary to use several materials to make the bow body.