| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF | 
			| TB/T 456.1-2019 | English | 459 | Add to Cart | 5 days [Need to translate] | Automatic coupler and draft gears for rolling stock -- Part 1: Mounting requirement | Valid | TB/T 456.1-2019 | 
			| TB/T 456-2016 | English | RFQ | ASK | 6 days [Need to translate] | Couplers and coupler yokes for railway rolling stock | Obsolete | TB/T 456-2016 | 
			| TB/T 456-2008 | English | RFQ | ASK | 7 days [Need to translate] | Couplers and coupler yokes for railway locomotive and rolling stock | Obsolete | TB/T 456-2008 | 
			| TB/T 456-1991 | English | 879 | Add to Cart | 6 days [Need to translate] | (Coupler yokes technical conditions) | Obsolete | TB/T 456-1991 | 
			| TB 456-1984 | English | RFQ | ASK | 3 days [Need to translate] | (Chinese Industry Standard) | Obsolete | TB 456-1984 |