标 准 编 号：BS 1873-1975 简体中文标题：石油、石化及有关工业用钢球形阀、球形截止阀与单向阀(有法兰及对接焊端)规范 繁体中文标题：石油、石化及有关工业用钢球形阀、球形截止阀与单向阀(有法兰及对接焊端)规范 English Name：Specification for steel globe and globe stop and check valves (flanged and butt-welding ends) for the petroleum, petrochemical and allied industries
