1,lockable gas spring for medical bed,office chair 2,100,000 times ... parameters .specifications:Usage: medecial bed,office chair,Features: 1, Gas: Nitrogen filled inside. 2, Color : black,silver,or as ... Our paint is passed ROHS test; 4,When the gas spring is up and down, it's soomth opration without ... -50012*26200-150080500-1300200-60014*28200-2000100 Lockable gas spring/locking gas spring for medical