- Electric Elbow Making Machine (elbow maker,gore locker)
- 2016-11-01 19:00
- Traditionally , tubes connecting and pressing is finished by handwork. But our company deleloped and produced elbow-maki
- duct manufacture auto line I
- 2016-10-24 22:17
- duct manufacture auto line-ILine I consists of a feeding metal frame leveler-grooving roller,power cutting machine or hy