| Standard No. | Title | Price(USD) | Delivery | Status | Add To Cart | 
                                        
                        | YD 5054-2005 | Standard for Classification of Seismic Protection of Telecommunication Buildings | 195 (USD) | via email in
                                                                                                                    1-3 business day | ABOLISHED |  | 
                                        
                        | YD/T 638.3-1993 |  | 60 (USD) | via email in
                                                                                                                    1-3 business day | ABOLISHED |  | 
                                        
                        | YD/T 993-1998 | Technical requirments and test methods of lightning resistibility for telecommunication terminal equipment | 180 (USD) | via email in
                                                                                                                    1-3 business day | ABOLISHED |  | 
                                        
                        | GB 7431-1987 | Transmission objectives and their testing methods for crossbar local automatic telephone exchange | 135 (USD) | via email in
                                                                                                                    1-3 business day | ABOLISHED |  | 
                                        
                        | YD/T 638.15-1994 |  | 60 (USD) | via email in
                                                                                                                    1-3 business day | VALID |  | 
                                        
                        | YD/T 1765-2008 | Noun Terms in Communication Safety and Protection | 585 (USD) | via email in
                                                                                                                                                1-5 business day | VALID |  | 
                                        
                        | YD 5078-1998 | Secifications on Lightning Protection for Power Supply System in Engineering of Telecommunications | 435 (USD) | via email in
                                                                                                                    1-3 business day | ABOLISHED |  | 
                                        
                        | YDB 101-2012 | Security requirements of internet of things |  | via email in | VALID | please email coc@codeofchina.com for quotation | 
                                        
                        | QX 2-2000 | Technical specifications for lightning protection at china new generation weather radar station | 210 (USD) | via email in
                                                            1 business day | VALID |  | 
                                        
                        | YD 311-1984 |  | 75 (USD) | via email in
                                                                                                                    1-3 business day | ABOLISHED |  | 
                                        
                        | YD/T 1429-2006 | Performance requirements and Testing Methods for Lightning Protection system of Running Telecommunication Stations/Sites | 420 (USD) | via email in
                                                                                                                    1-3 business day | VALID |  | 
                                        
                        | YD/T 627-1993 |  | 195 (USD) | via email in
                                                                                                                    1-3 business day | ABOLISHED |  | 
                                        
                        | YD/T 983-1998 | Limits and methods of measurement of electromagnetic compatibility for telecommunication power supply equipment | 720 (USD) | via email in
                                                                                                                                                1-5 business day | ABOLISHED |  | 
                                        
                        | YD/T 122-1997 |  | 225 (USD) | via email in
                                                                                                                    1-3 business day |  |  | 
                                        
                        | YD/T 907-1997 |  | 105 (USD) | via email in
                                                                                                                    1-3 business day | ABOLISHED |  | 
                                        
                        | YD/T 644-1993 | Sophisticated method of complete communication equipment | 180 (USD) | via email in
                                                            1 business day | ABOLISHED |  | 
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