CB/T 3388-1992 Design rules for the body of a two-way insert valve for marine use

ZB J22 007 GB/T 2877-1981 Hydraulic fluid power—Two-port slip-in cartridge valves cavities GB/T 2877-2007 Hydraulic fluid power—Two-port slip-in cartridge valves—Cavities GB/T 2877.2-2021 Hydraulic two-port slip-in cartridge valves—Part 2:Mounting dimensions GB/T 2878-1993 Fluid power systems and components—Ports—Dimensions and design GB/T 2878.1-2011 Connections for hydraulic fluid power—Ports and stud ends with metric threads and O-ring sealing—Part 1:Ports GB/T 2878.2-2011 Connections for hydraulic fluid power—Ports and stud ends with metric threads and O-ring sealing—Part 2:Heavy-duty stud ends (S series) GB/T 2878.3-2017 Connections for hydraulic fluid power—Ports and stud ends with metric threads and O-ring sealing—Part 3:Light-duty stud ends (L series) GB/T 2878.4-2011 Connections for hydraulic fluid power—Ports and stud ends with metric threads and O-ring sealing—Part 4:Hex plugs GB/T 4458.1-2002 Mechanical drawings—General principles of presentation-Views GB/T 4458.3-2013 Mechanical drawings—Axonometric drawings GB/T 4458.3-1984 Mechanical drawings--Axonometric drawings GB/T 2878.1-2025 Connections for hydraulic fluid power—Ports with truncated housing and stud ends with metric threads—Part 1:Ports with truncated housing