Detailed Product Description gas spring ,Supporting gas spring, cabinet gas spring,lockable gas spring .- Description : dia. Tube(mm) dia.Piston rod(mm) Force F1(N)12 4,5,6 40-20015 6 50-35018 8 80-60021/22 10 150-120026 12 200-200028 14 200-3800We have over 2000type of gas spring available !