AIL Spiral Seam Duct is suitable for all types of commercial air duct in bangladesh. corregated steel pipe manufacturer and supplier in bangladesh. AIL produces a full line of lock-type Spiral Seam Duct to meet the most demanding needs of air conditioning, fume exhaust, ventilation, and other air duct applications. Spiral Seam Duct combines the proven strength of corrugated metal pipe with the flow capacity of a smooth inner wall. Look into the many benefits of using Spiral Seam Duct from AIL for your next commercial air duct system
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