| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | See Detail | Status | Related Standard | 
			| HGJ 526-1990 | English | RFQ | ASK | Days<=14 | (Multilayer U-shaped bellows expansion joints Series) | HGJ 526-1990 | Obsolete | HGJ 526-1990 |