
Connections for fluid power and general use - Ports and stud ends with ISO 261 metric threads and O-ring sealing Part 4: Dimensions, design, test methods and requirements for external hex and internal hex port plugs
出版:International Organization for Standardization

專家解讀視頻
GB/T 2878.4-2011 - Modified
NEN ISO 6149-4:2006 - Identical
BS ISO 6149-4:2006 - Identical
NF ISO 6149-4:2006 - Identical
SS ISO 6149-4 Ed. 1 (2006) - Identical