In this audio, the prominent sound is that of a pneumatic hammer striking an iron lid. The pneumatic hammer, powered by compressed air, releases a forceful blow onto the iron lid, resulting in a resonant, metallic clang. The air being released from the hammer is audible as a sharp hiss, punctuating each hammer blow. The rhythmic pattern of the hammer strikes creates a mechanical symphony, reminiscent of the sound effects one might hear in a busy train station or an industrial machine shop. The strike on the iron lid is distinct and reverberates, echoing the strength of iron. The combined soundscape is a powerful testament to the force and efficiency of air-powered tools.