Wenzhou Topsun Bellows Factory was founded in 1990. We supply bellows, expansion joint, bellow compensator, corrugated pipe, and metal hose in advanced level, which widely used in valves,complings, engines, chemistry and industry, oil and gas pipeline, city pipe network construction, ship of making, war industry, wharf etc. 
With nearly 20 years experience, we can supply some special products compared with prevailing market.