GB/T 34032-2017船舶与海上技术管路系统衬垫密封机械接头及其附件性能规范国家标准
英文:Ships and marine technology—Gasketed mechanical couplings and its fittings for use in piping systems—Performance spec...
英文:Ships and marine technology—Gasketed mechanical couplings and its fittings for use in piping systems—Performance spec...