wind resistance – hvacDTC

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Shenzhen Qigedanci Technology Co., Ltd. | Room 12N, Ruijun Commercial Mansion, No. 108 Zhongxin Road, Baoan District, Shenzhen 518000, Guangdong Province, China

D-Type HVAC Duct Backdraft Damper (75mm), Odor-Proof, Wind-Resistant Check Valve for Kitchen Bathroom Exhaust Fans