1. The building drum has special design with patent turn up fingers device so it can make very smooth nylon cord turn up and will not cause nylon cord angle change.
2. The building drum has special design with patent no gap rubber band which will produce very tough green tire on bead position so it can reduce the blister problem on the side wall and bead position.
3. Bead setting ring equipped with strong magnets will rapidly and precisely hold bead wire on right position.
Special design with patent side stitcher for stitching the both side edge of sidewall.
Taiwan
