Auto duct line,duct machine manufacturer--Anhui Preda ...
Anhui Preda Machine is specialized in manufacture and export for all kinds of HVAC spiral tubeformer and duct machine like auto duct line,TDF rollformer,Pittsburgh machine,gorelocker and etc. ... needle bearings so the machine more durable. All gears, axles and rollers equipped in the machineare made from ... Light weight and ease for operating ...
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