HG 21503-1992 Steel fixed thin-walled tube plate heat exchanger (with explanatory text)

GB 150-1998 Steel pressure vessels GB/T 150.1-2011 Pressure vessels—Part 1:General requirements GB/T 150.1-2024 Pressure vessels—Part 1:General requirements GB/T 150.2-2011 Pressure vessels—Part 2:Materials GB/T 150.2-2024 Pressure vessels—Part 2:Materials GB/T 150.3-2011 Pressure vessels—Part 3:Design GB/T 150.3-2024 Pressure vessels—Part 3:Design GB/T 150.4-2011 Pressure vessels—Part 4:Fabrication,inspection and testing,and acceptance GB/T 150.4-2024 Pressure vessels—Part 4:Fabrication,inspection and testing,and acceptance GB/T 1804-2000 General tolerances for linear and angular dimensions without individual tolerance indications GB/T 2270 GB/T 3323-1987 Methods for radiographic inspection and classification of radiographs for fusion welded butt joints in steel GB/T 3323-2005 Radiographic examination of fusion welded joints in metallic materials GB/T 3323.1-2019 Non-destructive testing of welds—Radiographic testing—Part 1:X-and gamma-ray techniques with film GB/T 3323.2-2019 Non-destructive testing of welds—Radiographic testing—Part 2:X-and gamma-ray techniques with digital detectors GB/T 8163-1999 Seamless steel tubes for liquid service GB/T 8163-2008 Seamless steel tubes for liquid service GB/T 8163-2018 Seamless steel pipes for liquid service HGJ 44 JB 2536 JB 4700 JB 8 JB/T 1614-1994 The mechanical properties test method for welded joints of boiler pressure elements JB/T 4712-1992 Saddle type support JB/T 4712.1-2007 Vessel supports-Part 1:Saddle support JB/T 4712.2-2007 Vessel supports-Part 2:Leg support JB/T 4712.3-2007 Vessel supports-Part 3:Lug support JB/T 4712.4-2007 Vessel supports-Part 4:Bracket support GB/Z 150-2025 Guide for magnetizing behaviour of permanent magnets