ISO 9809-2:2019
气瓶 - 可再填充无缝钢气瓶和管道的设计 建造和测试 - 第2部分:淬火和回火钢瓶和拉伸强度大于或等于1 100 MPa的钢管
Gas cylinders — Design, construction and testing of refillable seamless steel gas cylinders and tubes — Part 2: Quenched and tempered steel cylinders and tubes with tensile strength greater than or eq