duct fabrication machine auto line automatic electric ...
Auto Duct Production Line, Auto Line Air Duct Machines . Auto duct production line 3: The line 3 machine can finish sheet leveling, grooving/beading, angle shearing, cutting and folding with CNC automatic system. Faster and more convenient. Auto duct production line 2: This line 2 machine has 4 functions, including leveling, grooving/beading ...
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