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. ... and T-15 capable of 1.5mm galvanized metal sheet. Decoiler. ... Rigid frame is built with thick concrete plate steel to ensure function .
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