sj7706 iron hoop sj7706a wooden ring single layer flakeboard sj7706b wooden ring double layer flakeboard sj7706c three-layer density plate sj7706e iron hoop single layer solid wood boards sj7706d iron hoop three-layer solid wood boards sj1058a sj1023a sj1023 sj1083a sj1083b sj1083c sj1083d sj1083f sj7437a sj7706f iron hoop two-layer solid wood boards sj7706g wood ring single layer solid wood triangular plate

as shown in the figure