Pp Manual air valves

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{"cid":"58377","pid":"15096308","pimg_url":"\/\/img1.b2bforus.com\/df\/40\/b009222b9dbd\/product\/40159142_s-w400xh400.jpg","name":"Centrifugal Blower Fan Plastic Air Valve Plastic Manual Damper \/Butterfly Valve Manual For Control The Air Volume","attrs":{"Price":"Negotiable","MOQ":"1 Piece","Delivery Time":"Negotiable","Brand":"XiCheng"}}

{"cid":"58377","pid":"15096290","pimg_url":"\/\/img1.b2bforus.com\/df\/40\/b009222b9dbd\/product\/40159054_s-w400xh400.jpg","name":"Wear And Corrosion Resistance PP Manual Air Check Valve Flow Control Air Regulator Pneumatic Valve Interlocked Manual Plastic Air Duct Dampers","attrs":{"Price":"$4.00(>=1 Pieces)","MOQ":"1 Piece","Delivery Time":"Negotiable","Brand":"XiCheng, XiCheng"}}

{"cid":"58377","pid":"15096275","pimg_url":"\/\/img1.b2bforus.com\/df\/40\/b009222b9dbd\/product\/40158968_s-w400xh400.jpg","name":"Motorized Auto Control Butterfly Valve PP Systems Damper Plastic Motorized Regulator Round Air Duct Dampers Manual Plastic PVC Valves","attrs":{"Price":"$19.90(>=1 Sets)","MOQ":"1 Set","Delivery Time":"Negotiable","Brand":"customized, Xicheng"}}