... 4,warranty:2years. we are a leading manufacture of gas spring based in GuangZhou China. From founded in ... etc.our factory can also design and supply the gas spring according to customer requirement .if you would ... contact us.specifications:Usage: vw new BEETLE Features:1, Gas: Nitrogen filled inside.2, Color : black,silver, ... Our paint is passed ROHS test;4,When the gas spring is up and down, it's soomth ...