GB/T 32292-2015 Vacuum techology—Ferrofluid rotary feedthroughs—Generic specification

GB/T 3452.1-2005 Fluid power systems—O-rings—Part 1:Inside diameters, cross-sections, tolerances and size identification code GB/T 3452.2-2007 Fluid power systems—O-rings—Part 2:Quality acceptance criteria GB/T 1220-1992 Stainless steel bars GB/T 1220-2007 Stainless steel bars GB/T 1800.1-1997 Limits and fits—Bases—Part 1:Terminology GB/T 1800.1-2009 Geometrical Product Specifications (GPS)—Limits and fits—Part 1:Bases of tolerances,deviations and fits GB/T 1800.1-2020 Geometrical product specifications (GPS)—ISO code system for tolerances on linear sizes—Part 1:Basis of tolerances, deviations and fits GB/T 1800.2-1998 Limits and fits—Bases—Part 2:Basic rules of tolerances, deviations and fits GB/T 1800.2-2009 Geometrical Product Specifications (GPS)—Limits and fits—Part 2:Tables of standard tolerance grades and limit deviations for holes and shafts GB/T 1800.2-2020 Geometrical product specifications(GPS)—ISO code system for tolerances on linear sizes—Part 2:Tables of standard tolerance classes and limit deviations for holes and shafts GB/T 1800.3-1998 Limits and fits—Bases—Part 3:Numerical values tables of standard tolerances and fundamental deviations GB/T 1800.4-1999 Limits and fits Tables of standard tolerance grades and limit deviations for holes and shafts GB/T 3864-1996 Industrial nitrogen GB/T 3864-2008 Industrial nitrogen GB/T 4844-2011 Pure helium,high pure helium and ultra pure helium GB 4844.2-1995 Pure helium GB/T 4844.3-1995 High purity helium GB/T 6070-1995 Vacuum flanges GB/T 6070-2007 Vacuum technology—Flange dimensions GB/T 6071-2003 Ultra-high vacuum flange GB/T 13306-1991 Plates GB/T 13306-2011 Plates GB/T 6070-2025 Vacuum technology—Dimensions of non-knife edge flanges GB/T 3864-2025 Industrial nitrogen GB/T 4844-2025 Pure helium,high purity heliun and ultra purity helium