... cover 3,This gas lift is for many types machine.4,compression spring suitable for cabinet and chair,newton 30N,50N, ... know the parameters .specifications:Usage: Toyota automobile.Features: 1, Gas: Nitrogen filled inside. 2, Color : black,silver,or ... paint is passed ROHS test; 4,When the gas spring is up and down, it's soomth ... Shipment: We can accept your appionted forwarder. gas lift for machinery