Ventilation pipe check PVC250 Valve Anti-smoke treasure public flue check valve kitchen oil smoke anti-return check valve

 
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Brand:
Check valve
Model:
75-250mm
The origin of:
Mainland China
Province:
Zhejiang province
Cities:
Hangzhou
Color classification:
75 models on both sides are connected to 75PVC pipe 80 models are connected to 80 hoses 100 models are connected to 100 hoses 110 on both sides of 110PVC pipe 120 type
Intelligent type:
Does not support smart
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