For the 10 litre oxygen cylinder,Parameters as follow, 1.type:oxygen cylinder 2.standard:GB5099 3.water capacity:10 L 4.outside diametre:140 mm 5.wall thickness:4 mm 6.length:840mm 7.working pressure:150 bar 8.testing pressure:250 bar 10.material:37Mn steel 11.valve:QF-2 W21.8mm-14TPI 12.Net weight(with cap & valve ):14kg 13.Net weight(without cap & valve ):13 kg 14.color:see my photo,or you decide. 15.thread of cylinder:inlet &outlet: PZ 27.8,also we can manufacture them according to your requirement. 16.each cylinder has a plastic white net. 17.each cylinder packaging in individual carton box 18.we can type O2 TP250,FP150,W,V,S,on the cylinder. 19.we provide testing analysis report. 20.each cylinder has ball blasting ,heat treatment. Yuyao Jiahua Medical Appliance Co.,Ltd. was involved in medical equipments since 1995 and is a Chinese company of having real strength. We specialized in the manufacture of Medical Oxygen Regulator,oxygen flowmetre, Medical Gas Delivery and suction systems, humidifier varies of pressure gauges, reductors, flowmeters, valves, gas cylinder, and their related products.Also we could offer OEM service. Our products have exported to Taiwan, Thailand, Vietnam,Middle East,east and south Asia and have gained a lot of great fame in international and domestic market.