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Spiral duct
Rectangular duct
Stainless steel spiral
Stainless steel welded
Galvanized air duct
Stainless steel welded
Valves
Check valve
Manual regulating valv
Fire damper
Pneumatic control valv
Electric control valve
Aluminum alloy tuyere
ABS tuyere
PVC tuyere
Duct accessories
Duct production equipm
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Electric control valve
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