1) Function: Soft up opening the door.
2) Material: cold-rolled steel, steel pipe, Nitrogen.
3) Propping force: 20N-300N
4) The whole length:
5) Width between centers:
6) Opening angel: 80°90°110°,it is determined by the position of fixing brackets.
7) Fixing bracket: wooden or frame door can be chosen.
8) Colour: Silver
9) Design Patent No. ZL200330101765.7