美利体育登录入口官网:BS EN ISO 9974-3:2000
普通和液压用联接结件.用ISO 261螺纹的弹性或金属与金属间密封的气门和双头螺栓端头.(B型)金属与金属间密封的双头螺栓端头
Connections for general use and fluid power - Ports and stud ends with ISO 261 threads with elastomeric or metal-to-metal sealing - Stud ends with metal-to-metal sealing (type B)