... com, Furniture, Machines, Boat, Container, ETCLoad Type:Gas CompressionInside:NitrogenMaterial:Carbon SteelLift Time:100000timesStyle:CylinderColor:BlackKSP-YQ- ... knock against/scratch/peel/pinhole defect.4. The gas spring have no block and abnormal sound during ... used for Automobile, AUTO, car, sofa ,Furniture, Machines, Mechanical Equipment,Boat, Container, ETCCompetitive Advantage:1. High quality, ...