SBKJ is the biggest air duct machinery manufacturer in china,We make round and square duct machines for heating and ventilation system;
We already had our customers in Russia,Brazil,USA,Switzerland,New Zealand,Canada,Australia,India,Middle east ,South Africa?..

Here is some parts of our machinery list,
1:spiral tube former
2:Ovalizer
3:Elbow maker
4:Elbow seam welder
5:Stitch welder
6:Aluminum duct former
7:Aluminum flexible tube former
8:Plasma cutter
9:Bending machine
10:TDC/TDF flange forming machine
11:Automatic line 1,2,3,4,5
12:Lock former
13:Floder
14:Shearing machine
15?Corner inserter
16?Floor panel roll forming machine
17:Cable tray roll forming machine
18:Noise barriers roll forming machine
19:C channel roll forming machine
20:C&Z shape purlin interexchangeable roll forming machine
21:C shape purlin roll forming machine
22:Z shape purlin roll forming machine
23:Light steel keel roll forming machine
24:Electric cabinet frame roll forming machine
25:Side board of truck roll forming machine
26:Storage rack roll forming machine
27:Fire damper roll forming machine
28:Drainpipe roll forming machine
29:Highway guardrail roll forming machine
30:Roller shutter roll forming machine
31:Anode plate roll forming machine
32:Roof tile roll forming machine
33:Steel silo forming machine
34:Optional punching device
35:Optional feeding device
36:Optional leveler
37:Optional de-coiling device
38:CNC plasma cutting machine
39:Steel coil double-covering line
40:Steel coil covering and coating line