... repeatedly many years. Our Seamless Steel Gas Cylinder is transportable high-pressure vessel. The product ... , mechanical,medical, scientific research and building industuries. Specifications:1) Material: 37Mn, 34Mn2V, 30CrMo, 34CrMo42) Outside diameter ... :250Bar/300Bar6) GB5099/ISO9809 Seamless Steel Cylinder (Gas Cylinder, Steel Cylinder,Oxygen Cylinder)TypeHeight (MM)Weight(KG)Water Capacity ...