... up wooden door and aluminum door and other furnitures gas spring , gas support (reverse gas lift ) , Applicable to the tilt-up ... or customize according to your door's weight .Code : ES10211, Gas source : air/nitrogen2, Reverse load : 50N-200N3, Lift distance ... / black (Can be customize with requirement) 6, Coating method : electric plating / spraying 7, Assemble mode : side assemble 8, Package quanity ...