Compare between oval duct and rectangular duct 1, Resistance edia flows in oval duct is stable, vortex is not so easily occurred. When media flows in resistance is high; is easily occurred. 2, Wet Acreage Acreage of oval S=3.14*1/2*2*... - Update: 2008-04-06

DUCT MANUFACTURE AUTO-LINE3 Line a?�� consists of a feeding metal frame, leveler grooving roller, hydraulic notch and punch square machine, hydraulic shearer and folder. The electrical control system uses a computer with a closed-loop servo-system t... - Update: 2008-04-06

TDC-Flange Forming Machine TDC unit is one of the two universal flange making systems in the world. It can save time and material drastically with its well-seal, strong and durable joint structure. So it is especially suitable for producing a duct... - Update: 2008-04-06

TDF-flange Forming Machine TDF unit is one of the two universal flange making systems in the word, with low cost, well-seal and easy-fabrication, specially suitable to produce a duct with medium section area and applied in large-scale industrial man... - Update: 2008-04-06

Lock Forming Machine Features: 1) Simple construction with a sliding guide 2) Adjustable and reliable control with a tread pull spring which is point fixed inside 3) Some machines have press sheet units to ensure the high quality cut, light and easy... - Update: 2008-04-06

Motor-Drive-Shear The machine is of all-steel welded construction. Simple construction with good appearance. It is easy to operate, with low energy consumption. It is widely used for medium and thick steel sheet forming in the light machine industry... - Update: 2008-04-06

Plasma Cutting Machine The frame is of a steel welded construction, with a vibration treated coil to reduce internal stress , thus the frame is of good quality. X axis adopts high precision line cycle guide ,Y axis adopts high precision line... - Update: 2009-03-07