| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | See Detail | Status | Related Standard | 
			| GB/T 20818.21-2020 | English | 514 | Add to Cart | Days<=4 | Industrial-process measurement and control - Data structures and elements in process equipment catalogues - Part 21: Lists of properties (LOP) for automated valves for electronic data exchange - Generic structures | GB/T 20818.21-2020 | Valid | GB/T 20818.21-2020 |