Product description:Cylinder finishing : Autophoretic / Stainless steel Rod finishing : Nitriding process Cylinder diameter : 8 / 12 / 15 / 18 / 22 / 25 / 27 mm Travel pole diameter : 4 / 4 / 6 / 8 / 10 / 12 / 10 , 12 , 14 , 16 mm L (Install distance): According to customer’s requirement S ( stroke length ) : According to customer’s requirement End fitting form : According to customer’s requirement Pressure : 100N-1800 N ( 10 KG-183 KG) Brief introduction: Compression 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. Packing:A , 1 piece in a plastic bag . 10-30 pieces/carton. B , as customers 's requirement . Our advantage:1, We have engaged in automobile gas spring producing for 7 years . now , our products branch into more wider fields and still keep the high quality as usual . 2, We have a professional R & D team and own several patented products . If you have any problem in technology of gas spring , please contact us without any hesitation , we will provide the perfect service to you . 3, It is only 50 minutes range of driving from our factory to Shanghai Pudong International Airport , Welcome you to take a visit and cooperate with us.