Wenzhou Exhaust Bellows manufactures high quality exhaust bellows(flex bellows) work as flex coupling for exhaust manifold systems , and supply OEM service to American TOP 3. By the usage of SIEMENS PLC control system bellows forming machine, our multi-ply exhaust bellows(flex bellows) with 30% at least longer life time, is highly recognized by the auto racing parts companies. And imported Italian tube expend technology makes solid liner smooth for easy installation.