New ventilation duct extrusion machine--The new technology of China
The new ventilation duct machine is a new design of our company, also called new prestressed corrugated pipe extrusion machine. The new ventilation duct looks like the bamboo, and is widely used in the construction of bridge and tunnel, which is quite popular in China in recent years as per the 2016 New National Standard.
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- No.13 of Jiangsu Road, Beiguan Industrial Park, Jiaozhou City, Qingdao City, Shandong Province, China