HB 3199-1992 Technical Specifications for Die-Casting Molds

GB/T 223.73-2008 Iron,steel and alloy—Determination of iron contents—Titanium trichloride-potassium dichromate titration method GB/T 223.74-1997 Methods for chemical analysis of iron,steel and alloy—The combustion gravimetric/gas-volumetric method for the determination of combined carbon content GB/T 223.75-1991 Methods for chemical analysis of iron, steel and alloy—The methanol distillation-curcumin photometric method for the determination of boron content GB/T 223.75-2008 Iron,steel and alloy—Determination of boron content—Methanol distillation-curcumin photometric method GB/T 223.76-1994 Methods for chemical analysis iron, steel and alloy—The flame atomic absorption spectrometric method for the determination of vanadium content GB/T 223.77-1994 Methods for chemical analysis of iron, steel and alloy—The flame atomic absorption spectrometric method for the determination of calcium content GB/T 223.78-2000 Methods for chemical analysis of iron,steel and alloy—Curcumin spectrophotometric method for the determination of boron content GB/T 223.79-2007 Iron and steel—Determination of multi-element contents—X-ray fluorescence spectrometry(Routine method) GB/T 223.80-2007 Iron,steel and alloy—Determination of trace bismuth and arsenic contents—Hydride generation-atomic fluorescence spectrometric method GB/T 223.81-2007 Iron,steel and alloy—Determination of total aluminum and total boron contents—Microwave digestion-inductively coupled plasma mass spectrometric method GB/T 223.82-2007 Steel and iron—Determination of hydrogen content—Inert gas impulse fusion heat conductivity method GB/T 223.82-2018 Steel and iron—Determination of hydrogen content—Thermal conductivity/infrared method after fusion under inert gas GB/T 223.83-2009 Steel and iron—Determination of high sulfur content—Infrared absorption method after combustion in an induction furnace GB/T 223.84-2009 Steel and iron—Determination of titanium content—Diantipyrylmethane spectrophotometric method GB/T 223.85-2009 Steel and iron—Determination of sulfur content—Infrared absorption method after combustion in an induction furnace GB/T 223.86-2009 Steel and iron—Determination of total carbon content—Infrared absorption method after combustion in an induction furnace GB/T 223.87-2018 Iron, steel and alloy—Determination of calcium and magnesium—Inductively coupled plasma mass spectrometric method GB/T 223.88-2019 Iron,steel and alloy—Determination of calcium and magnesium contents—Inductively coupled plasma atomic emission spectrometric method GB/T 223.89-2019 Iron,steel and alloy—Determination of tellurium content—Hydride generation-atomic fluorescence spectrometric method GB/T 223.90-2021 Iron,steel and alloy—Determination of silicon content—Inductively coupled plasma atomic emission spectrometric method GB/T 223.91-2021 Iron,steel and alloy—Determination of copper—2,2′-Biquinoline spectrophotometric method GB/T 223.92-2023 Iron, steel and alloy—Determination of lanthanum, cerium, praseodymium, neodymium and samarium content—Inductively coupled plasma mass spectrometry GB/T 230.1-2004 Metallic Rockwell hardness test—Part1:Test method(scales A、B、C、D、E、F、G、H、K、N、T) GB/T 230.1-2009 Metallic materials—Rockwell hardness test—Part 1:Test method(scales A、B、C、D、E、F、G、H、K、N、T) GB/T 230.1-2018 Metallic materials—Rockwell hardness test—Part 1:Test method GB/T 230.2-2002 Metallic rockwell hardness test—Part 2:Verification and calibration of hardness testers(scales A,B,C,D,E,F,G,H,K,N,T) GB/T 230.2-2012 Metallic materials—Rockwell hardness test—Part 2:Verification and calibration of testing machines GB/T 230.2-2022 Metallic materials—Rockwell hardness test—Part 2:Verification and calibration of testing machines and indenters GB/T 230.3-2002 Metallic rockwell hardness test—Part 3:Calibration of hardness reference blocks(scales A,B,C,D,E,F,G,H,K,N,T) GB/T 230.3-2012 Metallic materials—Rockwell hardness test—Part 3:Calibration of reference blocks(scales A,B,C,D,E,F,G,H,K,N,T) GB/T 230.3-2022 Metallic materials—Rockwell hardness test—Part 3:Calibration of reference blocks GB 4342 HB 3165-1992 leader guide post HB 3165-1979 Guide post HB 3166-1992 stepped guide pins HB 3166-1979 Guide post HB 3167-1992 Guide Sleeve HB 3167-1979 guide sleeve HB 3168-1992 A-type gating sleeve HB 3168-1979 Spray Pipe Sleeve HB 3170-1992 Type B gating sleeve HB 3170-1979 Spray head sleeve (semi-finished product) HB 3171-1992 small-medium-sized pouring sleeve HB 3171-1979 Spray tip sleeve HB 3172-1992 Type A diverter cone HB 3172-1979 shunt cone HB 3173-1992 Type B diverter cone HB 3173-1979 Diverter Cone HB 3174-1992 small-medium-sized shroud component HB 3174-1979 divider (divider) HB 3175-1992 Diverter Block HB 3175-1979 Divider。 HB 3176-1992 notch-shaped push rod HB 3176-1979 Notch top rod HB 3177-1992 Type A flow divider pusher HB 3177-1979 diversion piston rod HB 3178-1992 Type B diverter rod HB 3178-1979 Diverter Piston Rod HB 3179-1992 Rectangular Push Pins HB 3179-1979 Rectangle top rod HB 3180-1992 Slider Pusher HB 3180-1979 push board top rod HB 3181-1992 Reset rod HB 3181-1979 Reset lever (also serves as a pusher) HB 3182-1992 angle pin HB 3182-1979 cantilever bar HB 3183-1992 Type A push plate guide pillar HB 3183-1979 guide rod HB 3184-1992 Type B push plate guide pillar HB 3184-1979 guide rod HB 3185-1992 pushing board guide bushing HB 3185-1979 guide sleeve HB 3186-1992 type A wedge tightener HB 3186-1979 locking block HB 3187-1992 Type B wedge block HB 3187-1979 locking block HB 3188-1992 Pin locator HB 3188-1979 Positioning pin HB 3189-1992 Limit peg HB 3189-1979 stop pin HB 3190-1992 stop board HB 3190-1979 stop block HB 3191-1992 Pressboard HB 3191-1979 Pressure plate HB 3192-1992 pillar (n.) HB 3192-1979 pillar (of a building) HB 4548-1992 Detachable guide post HB 4549-1992 Shoulderless Guide Sleeve HB 4550-1992 large pouring neck sleeve HB 4551-1992 large-scale guide block HB 4552-1992 putter HB 4553-1992 Type C wedge fastener HB 4554-1992 Type D wedge block HB 4555-1992 block HB 4556-1992 pillar。 HB 4557-1992 bearing bushing gasket HB 4558-1992 plate washer HB 4559-1992 Limit Washer HB 4560-1992 hose connector