Dongguan city ding da environmental protection engineering co., LTD -

Dongguan city ding da environmental protection engineering co., LTD

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spiral duct
Specification: 400 diameter*0.6
Detail: Good sealing. Spiral duct has no welding, no leakage, no leaking, the advantages of is that the best way to transport supply and bulk materials Strength and rigidity are good Spiral duct ventilation resistance is small


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