1.the wheel adopts wearable nylon and imported bearing, which can guarantee smoothness and
durability of pulley
2.Sheave's unique design of muffler cell and exquisite surface can guarantee that the door
moves stably and silently
3.Special bolt connecting way realizes the free adjustment up and down 5mm
If you want to get a better tightness of sash, you can use strip in door gap.
4.Please check the exact type from our catalogue
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Tmall
