... we always devoteing our time and money to producing gas spring,so we are proffesion.3,Looking forward ... know the parameters .specifications:Usage: Toyota automobile.Features: 1, Gas: Nitrogen filled inside. 2, Color : black,silver,or ... Our paint is passed ROHS test; 4,When the gas spring is up and down, it's soomth opration ... deposit.Shipment: We can accept your appionted forwarder. gas springs for bed