Detailed Product DescriptionProduct Name:Lockable Gas SpringsApplication:Chair ,Website:http://www.cncospl.com,car, MachineLoad Type:Gas CompressionInside:NitrogenMaterial:SteelLift Time:150000timesStyle:CylinderColor:BlackKSP-JKQ-42 Adjustable Lockable Gas Spring For Sofa Chair And Medical BedCompression gas spring also called support bar, it can play a role in support, cushioning, there is no stop at trip. It used comfortable, convenient installation. Mainly used in aircraft,automobile, engineering machinery, furniture and office supplies industry.Remark: this is just for your  reference, we can produce asyour drawings or  detailed specification include:1 the stroke (S) 2 the extended length ( L ) 3 Force 4 tube diameter5 piston rod diameter 6 the joint Gas spring applications1) car trunk, bus luggage, automotive accessories yacht, Toyota parts2) furniture, wall-bed, sofa, chair armrest, cabinet, fitness equipment3) industrial equipment, heavy machinery, agriculture machinery,textile machinery and so onSpecifications: