HG/T 3796.4-2005 Impeller of Open turbine

HG/T 3796.1-2005 Impeller types and parameters HG/T 3796.2-2005 Series of agitator shaft diameters HG/T 3796.3-2005 Paddle impeller HG/T 3796.5-2005 Impeller of disc turbine HG/T 3796.6-2005 Impeller of sawtooth disc turbine HG/T 3796.7-2005 Impeller with three backswept blades HG/T 3796.8-2005 Propeller HG/T 3796.9-2005 Plate type propeller HG/T 3796.10-2005 Screw agitator HG/T 3796.11-2005 Helical ribbon agitator HG/T 3796.12-2005 Anchor and type agitator

GB/T 1095-2003 Square and rectangular keyways GB/T 1184-1996 Geometrical tolerancing—Geometrical tolerance for features without individual tolerance indications GB/T 1801-1999 Limits and fits—Selection of tolerance zones and fits GB/T 1801-2009 Geometrical Product Specifications (GPS)—Limits and fits—Selection of tolerance zones and fits GB/T 1804-2000 General tolerances for linear and angular dimensions without individual tolerance indications GB/T 3274-1988 Carbon structural and low alloy steel rolled plates and strips GB/T 3274-2007 Hot-rolled plates and strips of carbon structural steels and high strength low alloy structural steels GB/T 3274-2017 Hot-rolled plates,sheets and strips of carbon structural steels and high strength low alloy structural steels GB/T 3280-1992 Cold rolled stainless steel sheets and plates GB/T 3280-2007 Cold rolled stainless steel plate, sheet and strip GB/T 3280-2015 Cold rolled stainless steel plate, sheet and strip GB/T 4237-1992 Hot rolled stainless steel sheets and plates GB/T 4237-2007 Hot rolled stainless steel plate, sheet and strip GB/T 4237-2015 Hot rolled stainless steel plate,sheet and strip GB/T 5117-1995 Carbon steel covered electrodes GB/T 5117-2012 Covered electrodes for manual metal arc welding of non-alloy and fine grain steels GB/T 5118-1995 Low alloy steel covered electrodes GB/T 5118-2012 Covered electrodes for manual metal arc welding of creep-resisting steels GB/T 912-1989 Hot-rolled plain carbon and low alloy structural steel sheets and strips GB/T 912-2008 Hot-rolled sheets and strips of carbon structural steels and high strength low alloy structural steels GB/T 983-1995 Stainless steel covered electrodes GB/T 983-2012 Covered electrodes for manual metal arc welding of stainless and heat-resisting steels GB/T 985-1988 Basic forms and sizes of weld grooves for gas welding manual arc welding and gas-Shielded arc welding GB/T 985.1-2008 Recommended joint preparation for gas welding,manual metal arc welding,gas-shield arc welding and beam welding GB/T 985.2-2008 Recommended joint preparation for submerged arc welding GB/T 985.3-2008 Recommended joint preparation for gas-shield arc welding on aluminium and its alloys GB/T 985.4-2008 Recommended joint preparation for welding on clad steels