SH/T 3140-2011 Technical specification of centrifugal pumps for medium and light duty services in petrochemical engineering

GB/T 17241.1-1998 Synoptic table for cast iron pipe flanges GB/T 17241.1-2024 Cast iron pipe flanges—Part 1:PN designated GB/T 17241.2-1998 Cast iron pipe blank flanges GB/T 17241.2-2024 Cast iron pipe flanges—Part 2:Class designated GB/T 17241.3-1998 Hubbed threaded cast iron pipe flanges GB/T 17241.4-1998 Hubbed slip-on-welding and hubbed socket welding cast iron pipe flanges GB/T 17241.5-1998 Loose hubbed cast iron pipe flanges for lapped pipe end GB/T 17241.6-1998 Integral cast iron pipe flanges GB/T 17241.6-2008 Integral cast iron flanges GB/T 17241.7-1998 Specifications for cast iron pipe flanges GB/T 5656-1994 Technical specifications for centrifugal pumps—Class II GB/T 5656-2008 Technical specification for centrifugal pumps—ClassⅡ GB/T 9112-2000 Types and parameters for steel pipe flanges GB/T 9112-2010 Types and parameters for steel pipe flanges GBZ/T 189.8-2007 HG 20592 HG 20615 HG 20623 HG/T 3406-2014 HG/T 3406-2014 Reductive Brown BR (C.I. Residual Brown 1) HG/T 3406-2002 Reduction Brown 2R Dye Fine Powder (Reduction Brown BR Dye Fine Powder) HG/T 3406-2008 HG/T 3406-2008 Reactive Brown BR (C.I. Reactive Brown 1) ISO 13709-2003 ISO 1940 ISO 21049-2004 ISO 5199-2002