1.flexible enough can be bent at any direction 2.different sizes to choose from 3.high quality and reasonable price semi-rigid flexible air conditioning duct 1.airtight and waterproof2.widely used,and can be worked in extremely situation3.duct in duct,low logistic...

1.Flexible enough,bent at any direction 2.Different sizes to choose 3.Excellent work performance and usability semi-rigid flexible air conditioning ducting1.airtight and fireproof2.widely used,good work performation in extremely situation3.duct in duct,low logistic...