1.CNL,a leading manufacture in China 2.Pneuamtic Cylinder,Hydraulic Cylinder,high quality 3.Certification:ISO9001 Features:1)Bore size(mm) 12,16,20,252)Action: Double acting type3)Working medium: air4)Application pressure: 0.0055)Gurantee pressure proof: 1.06)Working Temp: -5-70°C7)Cushion type: adjustable cushion8)Cushion stroke : 249)Adapter diameter: 25mm Compact cylinder CQS series`