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[ Manufacturer ]Main business are Corrugated expansion product
[ Manufacturer Trader ]Main business are Valve
[ Manufacturer ]Main business are Metal seal
[ Manufacturer ]Main business are Bellows, Expansion joint and heat exchanger
[ Manufacturer Trader ]Main business are Corrugated swelling oil storage cabinet, Serial metal expander, Metal corrugated tube.
[ Manufacturer ]Main business are Corrugated pipe
[ Manufacturer ]Main business are Bellows, Metal hose, Sleeve compensator.
[ Manufacturer ]Main business are Valve