751 GB/T 9121.5-1988 PN 1.6MPa(16 bar) 凹凸面平焊环松套板式钢制管法兰 Loose plate steel pipe flanges with weld-on collar with male and female face for PN 1.6MPa (16 bar)
752 GB/T 9121.6-1988 PN 2.5MPa(25 bar) 凹凸面平焊环松套板式钢制管法兰 Loose plate steel pipe flanges with weld-on collar with male and female face for PN 2.5MPa (25 bar)
753 GB/T 9122.1-1988 PN 0.6MPa(6 bar)板式翻边松套钢制管法兰 Loose plate steel pipe flanges with lapped pipe end for PN 0.6MPa (6 bar)
754 GB/T 9122.2-1988 PN 1.0MPa(10 bar) 板式翻边松套钢制管法兰 Loose plate steel pipe flanges with lapped pipe end for PN 1.0MPa (10 bar)
755 GB/T 9123.1-1988 PN 0.25MPa(2.5 bar) 平面钢制管法兰盖 Steel pipe blank flanges with flat face for PN 0.25MPa (2.5 bar)
756 GB/T 9123.2-1988 PN 0.6MPa(6 bar)平面钢制管法兰盖 Steel pipe blank flanges with flat face for PN 0.6MPa (6 bar)
757 GB/T 9123.3-1988 PN 1.0MPa(10 bar) 平面钢制管法兰盖 Steel pipe blank flanges with flat face for PN 1.0MPa (10 bar)
758 GB/T 9123.4-1988 PN 1.6MPa(16 bar) 平面钢制管法兰盖 Steel pipe blank flanges with flat face for PN 1.6MPa (16 bar)
759 GB/T 9123.5-1988 PN 2.0MPa(20 bar) 平面钢制管法兰盖 Steel pipe blank flanges with flat face for PN 2.0MPa (20 bar)
760 GB/T 9123.6-1988 PN 0.25MPa(2.5 bar) 凸面钢制管法兰盖 Steel pipe blank flanges with raised face for PN 0.25MPa (25 bar)
761 GB/T 9123.7-1988 PN 0.6MPa(6 bar)凸面钢制管法兰盖 Steel pipe blank flanges with raised face for PN 0.6MPa (6 bar)
762 GB/T 9123.8-1988 PN 1.0MPa(10 bar) 凸面钢制管法兰盖 Steel pipe blank flanges with raised face for PN 1.0MPa (10 bar)
763 GB/T 9123.9-1988 PN 1.6MPa(16 bar) 凸面钢制管法兰盖 Steel pipe blank flanges with raised face for PN 1.6MPa (16 bar)
764 GB/T 9123.10-1988 PN 2.5MPa(25 bar) 凸面钢制管法兰盖 Steel pipe blank flanges with raised face for PN 2.5MPa (25 bar)
765 GB/T 9123.11-1988 PN 4.0MPa(40 bar) 凸面钢制管法兰盖 Steel pipe blank flanges with raised face for PN 4.0MPa (40 bar)
766 GB/T 9123.12-1988 PN 2.0MPa(20 bar) 凸面钢制管法兰盖 Steel pipe blank flanges with raised face PN 2.0MPa (20 bar)

767 GB/T 9123.13-1988 PN 5.0MPa(50 bar) 凸面钢制管法兰盖 Steel pipe blank flanges with raised face for PN 5.0MPa (50 bar)
768 GB/T 9123.14-1988 PN 10.0MPa(100 bar) 凸面钢制管法兰盖 Steel pipe blank flanges with raised face for PN 10.0MPa (100 bar)
769 GB/T 9123.15-1988 PN 15.0MPa(150 bar) 凸面钢制管法兰盖 Steel pipe blank flanges raised face for PN 15.0MPa (150 bar)
770 GB/T 9123.16-1988 PN 25.0MPa(250 bar) 凸面钢制管法兰盖 Steel pipe blank flanges with raised face for PN 25.0MPa (250 bar)
771 GB/T 9123.17-1988 PN 1.6MPa(16 bar) 凹凸面钢制管法兰盖 Steel pipe blank fanges with male and female face for PN 1.6MPa (16 bar)
772 GB/T 9123.18-1988 PN 2.5MPa(25 bar) 凹凸面钢制管法兰盖 Steel pipe blank flanges with male and female face for PN 2.5MPa (25 bar)
773 GB/T 9123.19-1988 PN 4.0MPa(40 bar) 凹凸面钢制管法兰盖 Steel pipe blank flanges with male and female face for PN 4.0MPa (40 bar)
774 GB/T 9123.20-1988 PN 5.0MPa(50 bar) 凹凸面钢制管法兰盖 Steel pipe blank flanges with male and female face for PN 5.0MPa (50 bar)
775 GB/T 9123.21-1988 PN 10.0MPa(100 bar) 凹凸面钢制管法兰盖 Steel pipe blank flanges with male and female face for PN 10.0MPa (100 bar)
776 GB/T 9123.22-1988 PN 15.0MPa(150 bar) 凹凸面钢制管法兰盖 Steel pipe blank flanges with male and female face for PN 15.0MPa (150 bar)
777 GB/T 9123.23-1988 PN 25.0MPa(250 bar) 凹凸面钢制管法兰盖 Steel pipe blank flanges with male and female face for PN 25.0MPa (250 bar)
778 GB/T 9123.24-1988 PN 1.6MPa(16 bar) 榫槽面钢制管法兰盖 Steel pipe blank flanges with tongue and groove face for PN 1.6MPa (16 bar)
779 GB/T 9123.25-1988 PN 2.5MPa(25 bar) 榫槽面钢制管法兰盖 Steel pipe blank flanges with tonges and groove face for PN 2.5MPa (25 bar)
780 GB/T 9123.26-1988 PN 4.0MPa(40 bar) 榫槽面钢制管法兰盖 Steel pipe blank flanges with tongue and groove face for PN 4.0MPa (40 bar)
781 GB/T 9123.27-1988 PN 5.0MPa(50 bar) 榫槽面钢制管法兰盖 Steel pipe blank flanges with tongue and groove face for PN 5.0MPa (50 bar)
782 GB/T 9123.28-1988 PN 10.0MPa(100 bar) 榫槽面钢制管法兰盖 Steel pipe blank flanges with tongue and groove face for PN 10.0MPa (100 bar)
783 GB/T 9123.29-1988 PN 15.0MPa(150 bar) 榫槽面钢制管法兰盖 Steel pipe blank flanges with tongue and groove face for PN 15.0MPa (150 bar)
784 GB/T 9123.30-1988 PN 25.0MPa(250 bar) 榫槽面钢制管法兰盖 Steel pipe blank flanges with tongue and groove face for PN 25.0MPa (250 bar)
785 GB/T 9123.31-1988 PN 2.0MPa(20 bar) 环连接面钢制管法兰盖 Steel pipe blank flanges with ring-joint face for PN 2.0MPa (20 bar)
786 GB/T 9123.32-1988 PN 5.0MPa(50 bar) 环连接面钢制管法兰盖 Steel pipe blank flanges with ring-joint face for PN 5.0MPa (50 bar)
787 GB/T 9123.33-1988 PN 10.0MPa(100 bar) 环连接面钢制管法兰盖 Steel pipe blank flanges with ring-joint face for PN 10.0MPa (100 bar)
788 GB/T 9123.34-1988 PN 15.0MPa(150 bar) 环连接面钢制管法兰盖 Steel pipe blank flanges with ring-joint face for PN 15.0MPa (150 bar)
789 GB/T 9123.35-1988 PN 25.0MPa(250 bar) 环连接面钢制管法兰盖 Steel pipe blank flanges with ring-joint face for PN 25.0MPa (250 bar)
790 GB/T 9123.36-1988 PN 42.0MPa(420 bar) 环连接面钢制管法兰盖 Steel pipe blank flanges with ring-joint face for PN 42.0MPa (420 bar)
791 GB/T 9124-1988 钢制管法兰对焊端部 Butt-welding ends for steel pipe flanges
792 GB/T 9125-1988 钢制管法兰技术条件 Specification for steel pipe flanges
793 GB/T 9126.1-1988 平面型钢制管法兰用石棉橡胶垫片 Asbestos rubber gaskets for steel pipe flanges with full face
794 GB/T 9126.2-1988 凸面型钢制管法兰用石棉橡胶垫片 Asbestos rubber gaskets for steel pipe flanges with raised face
795 GB/T 9126.3-1988 凹凸面型钢制管法兰用石棉橡胶垫片 Asbestos rubber gaskets for steel pipe flanges with male and female face
796 GB/T 9126.4-1988 榫槽面型钢制管法兰用石棉橡胶垫片 Asbestos rubber gaskets for steel pipe flanges with tongue and groove face
797 GB/T 9128.1-1988 钢制管法兰连接用八角形金属环垫 Octagonal metallic ring gaskets for steel pipe flanges joints
798 GB/T 9128.2-1988 钢制管法兰连接用椭圆形金属环垫 Oval metallic ring gaskets for steel pipe flange joints
799 GB/T 9129-1988 钢制管法兰用石棉橡胶垫片技术条件 Specification for asbestos rubber gaskets for steel pipe flanges

800 GB/T 9130-1988 钢制管法兰连接用金属环垫技术条件 Specification for metallic ring gaskets for steel pipe flange joints
801 GB/T 9131-1988 钢制管法兰压力温度等级 Pressure-temperature ratings for steel pipe flanges
802 GB/T 9149-1988 磁粉离合器通用技术条件 General specification for magnetic particle clutch
803 GB/T 9150-1988 带座外球面球轴承 分类 Bearing units—Classification
804 GB/T 9161-1988 杆端关节轴承 外形尺寸 Spherical plain bearing rod ends—Boundary dimensions
805 GB/T 9162-1990 推力关节轴承外形尺寸 Spherical plain thrust bearings—Boundary dimensions
806 GB/T 9163-1990 向心关节轴承外形尺寸 Spherical plain radial bearings, joint type—Boundary dimensions
807 GB/T 9164-1990 角接触关节轴承外形尺寸 Angular contact spherical plain bearings—Boundary dimensions
808 GB/T 9456-1988 十字槽凹穴六角自攻螺钉 Cross recessed hexagon head tapping screws with indentation
809 GB/T 9457-1988 1 型六角开槽螺母 细牙 A和B级 Hexagon slotted and castle nuts, style l--Fine pitch thread--Product grades A and B
810 GB/T 9458-1988 2 型六角开槽螺母 细牙 A和B级 Hexagon slotted and castle nuts, style 2--Fine pitch thread--Product grades A and B
811 GB/T 9459-1988 六角开槽薄螺母 细牙 A和B级 Hexagon thin slotted nuts--Fine pitch thread--Product grades A and B
812 GB/T 9785-1988 链条、链轮术语 Terminology of chains and chainwheels
813 GB/T 10042-1988 离合器术语 Clutch--Terminology
814 GB/T 10043-1988 离合器分类 Clutch--Classification
815 GB/T 10062-1988 锥齿轮承载能力计算方法 Methods for the calculation of load capacity for bevel gears
816 GB/T 10063-1988 通用机械渐开线圆柱齿轮 承载能力简化计算方法 Simplified methods for the calculation of load capacity of involute cylindrical gears for general machines
817 GB/T 10081-1988 矩形内花键 长度系列 Straight-sided internal spline--Length series
818 GB/T 10085-1988 圆柱蜗杆传动基本参数 Basic parameters of cylindrical worm gears
819 GB/T 10086-1988 圆柱蜗杆、蜗轮术语及代号 Terminology and symbols for cylindrical worm and worm wheel

820 GB/T 10087-1988 圆柱蜗杆基本齿廓 Basic tooth profile of cylindrical worm
821 GB/T 10088-1988 圆柱蜗杆模数和直径 Module and diameter of cylindrical worm
822 GB/T 10089-1988 圆柱蜗杆、蜗轮精度 Accuracy of cylindrical worm and wormwheel
823 GB/T 10090-1988 圆柱齿轮减速器基本参数 Basic parameters for cylindrical gear units
824 GB/T 10095-1988 渐开线圆柱齿轮精度 Accuracy of involute cylindrical gears
825 GB/T 10096-1988 齿条精度 Accuracy of rack
826 GB/T 10107.1-1988 摆线针轮行星传动 基本术语 Basic terminology of cycloidal drives
827 GB/T 10107.2-1988 摆线针轮行星传动 图示方法 Representation of drawings for cycloidal drives
828 GB/T 10107.3-1988 摆线针轮行星传动 几何要素代号 Symbols of geometrical data for cycloidal drives
829 GB/T 10224-1988 小模数锥齿轮基本齿廓 Basic rack tooth profile of fine-pitch bevel gears
830 GB/T 10225-1988 小模数锥齿轮精度 Accuracy of fine-pitch bevel gears
831 GB/T 10226-1988 小模数圆柱蜗杆基本齿廓 Basic rack tooth profile of fine-pitch cylindrical worm
832 GB/T 10227-1988 小模数圆柱蜗杆、蜗轮精度 Accuracy of fine-pitch cylindrical worm and wormwheel
833 GB/T 10412-1989 普通Ｖ带轮 Grooved pulleys for classical V-belt
834 GB/T 10413-1989 窄Ｖ带轮 Grooved pulleys for narrow V-belt
835 GB/T 10414-1989 汽车同步带传动 带轮 Synchronous belt drives for automotive applications —Pulleys
836 GB/T 10415-1989 农业机械用双面Ｖ带轮 Agricultural machinery double V-belt pulleys
837 GB/T 10416-1989 农业机械用半宽Ｖ带轮 Agricultural machinery half wide V-belt pulleys
838 GB/T 10429-1989 单级向心涡轮液力变矩器 型式和基本参数 Single-stage centripetal turbine hydrodynamic torque converters—Types and basic parameters
839 GB/T 10431-1989 紧固件横向振动试验方法 Transverse vibration testing method for fasteners
840 GB/T 10432-1989 无头焊钉 Headless studs for stud welding
841 GB/T 10433-1989 圆柱头焊钉 Cheese head studs for stud welding
842 GB/T 10445-1989 滑动轴承 整体轴套的轴径 Plain bearings—Shaft diameters for unsplit bushes
843 GB/T 10446-1989 滑动轴承 整圆止推垫圈 尺寸和公差 Plain bearings—Ring type thrust washers made from strip—Dimensions and tolerances

844 GB/T 10447-1989 滑动轴承 半圆止推垫圈 要素和公差 Plain bearings—Pressed bimetallic half thrust washers —Features and tolerances
845 GB/T 10614-1989 芯型弹性联轴器 Resilient coupling with core element
846 GB/T 10855-1989 传动用齿形链及链轮 Inverted tooth chains and chainwheels
847 GB/T 10856-1989 双涡轮液力变矩器通用技术条件 General specifications of double--Turbine torque converter
848 GB/T 11281-1989 控制微电机用齿轮减速器系列 Reduction gearhead series of electrical micro-machine for automatic control system
849 GB/T 11355-1989 V 带传动 额定功率的计算 V-belt drives—Calculation of power ratings
850 GB/T 11357-1989 带轮的材质、表面粗糙度及平衡 Quality , Surfaceroughness and balance of transmission pulleys

851 GB/T 11358-1989 平带传动 带轮直径尺寸 Flat belt drive pulleys diameters
852 GB/T 11359-1989 平带传动 平带及带轮的宽度 Flat belt drive Belt and pulleys—widths
853 GB/T 11360-1989 平带传动 带轮轮缘凸面 Flat belt drive pulleys—crowns
854 GB/T 11361-1989 同步带传动 带轮 Synchronous belt drives—Pulleys
855 GB/T 11362-1989 同步带传动 额定功率和传动中心距的计算 Synchronous belt drives—Calculation of power rating and drive centre distance
856 GB/T 11365-1989 锥齿轮和准双曲面齿轮 精度 Accuracy of bevel and hypoid gears
857 GB/T 11366-1989 行星传动基本术语 Basic terminology of planetary drives
858 GB/T 11367-1989 锥齿轮胶合承载能力计算方法 Methods for the calculation of scuffing load capacity for bevel gears
859 GB/T 12220-1989 通用阀门 标志 General purpose industrial valves—Marking
860 GB/T 12221-1989 法兰连接金属阀门 结构长度 Metal valves for use in flanged pipe systems—Face-to -face and centre-to-face dimensions
861 GB/T 12222-1989 多回转阀门驱动装置的连接 Multi-turn valve actuator attachment
862 GB/T 12223-1989 部分回转阀门驱动装置的连接 Part-turn valve actuator attachment
863 GB/T 12224-1989 钢制阀门 一般要求 General requirements for industrial steel valves
864 GB/T 12225-1989 通用阀门 铜合金铸件技术条件 General purpose industrial valves—Specification of copper alloy castings

865 GB/T 12226-1989 通用阀门 灰铸铁件技术条件 General purpose industrial valves—Specification of flake graphite iron castings
866 GB/T 12227-1989 通用阀门 球墨铸铁件技术条件 General purpose industrial valves—Specification of spheroidal graphite iron castings
867 GB/T 12228-1989 通用阀门 碳素钢锻件技术条件 General purpose industrial valves—Specification of carbon steel forgings
868 GB/T 12229-1989 通用阀门 碳素钢铸件技术条件 General purpose industrial valves—Specification of carbon steel castings
869 GB/T 12230-1989 通用阀门 奥氏体钢铸件技术条件 General purpose industrial valves—Specification of austenitic steel castings
870 GB/T 12232-1989 通用阀门 法兰连接铁制闸阀 General purpose industrial valves—Flanged iron gate valves
871 GB/T 12233-1989 通用阀门 铁制截止阀与升降式止回阀 General purpose industrial valves—Casting iron globe valves and lift check valves
872 GB/T 12234-1989 通用阀门 法兰和对焊连接钢制闸阀 General purpose industrial valves—Flanged and butt-weld steel gate valves
873 GB/T 12235-1989 通用阀门 法兰连接钢制截止阀和升降式止回阀 General purpose industrial valves—Flanged steel globe valves and lift check valves
874 GB/T 12236-1989 通用阀门 钢制旋启式止回阀 General purpose industrial valves—Steel swing check valves
875 GB/T 12237-1989 通用阀门 法兰和对焊连接钢制球阀 General purpose industrial valves--Flanged and butt-weld end steel ball valves
876 GB/T 12238-1989 通用阀门 法兰和对夹连接蝶阀 General purpose industrial valves—Flanged and wafer butterfly valves
877 GB/T 12239-1989 通用阀门 隔膜阀 General purpose industrial valves—Diaphragm valves
878 GB/T 12240-1989 通用阀门 铁制旋塞阀 General purpose industrial valves—Iron plug valves
879 GB/T 12241-1989 安全阀 一般要求 Safety valves—General requirements
880 GB/T 12242-1989 安全阀 性能试验方法 Performance test methods for safety valves

881 GB/T 12243-1989 弹簧直接载荷式安全阀 Spring loaded safety valves
882 GB/T 12244-1989 减压阀一般要求 General specification for pressure reducing valves

883 GB/T 12245-1989 减压阀 性能试验方法 Methods of performance test for pressure reducing valves
884 GB/T 12246-1989 先导式减压阀 Pilot-operated reducing valves
885 GB/T 12248-1989 蒸汽疏水阀 术语 Automatic steam traps—Definition of technical terms
886 GB/T 12249-1989 蒸汽疏水阀 标志 Automatic steam traps—Marking
887 GB/T 12250-1989 蒸汽疏水阀 结构长度 Automatic steam traps—Face-to-face dimensions
888 GB/T 12251-1989 蒸汽疏水阀 试验方法 Automatic steam traps—Test methods
889 GB/T 12278-1990 向心关节轴承 径向游隙 Spherical plain radial bearings, joint type—Redial internal clearance
890 GB/T 12368-1990 锥齿轮模数 Modules of bevel gears
891 GB/T 12369-1990 直齿及斜齿锥齿轮基本齿廓 Basic tooth profile of straight and skew bevel gears
892 GB/T 12370-1990 锥齿轮和准双曲面齿轮 术语 Terminology for bevel and hypoid gears
893 GB/T 12371-1990 锥齿轮 图样上应注明的尺寸数据 Bevel gears—Information of the dimensional data to be given on the drawing
894 GB/T 12385-1990 管法兰用垫片密封性能试验方法 Test method for sealing characteristics of gaskets for pipe flanges
895 GB/T 12458-1990 机械式联轴器分类 Mechanical coupling—Classification
896 GB/T 12459-1990 钢制对焊无缝管件 Steel butt-welding seamless pipe fittings
897 GB/T 12473-1990 小模数圆柱齿轮减速器通用技术条件 General specification for speed reducer with small module cylindrical gears
898 GB/T 12601-1990 谐波齿轮传动基本术语 Basic terminology of harmonic gear drive
899 GB/T 12613-1990 滑动轴承 卷制轴套 Plain bearings—Wrapped bushes
900 GB/T 12615-1990 封闭型扁圆头抽芯铆钉 Mushroom head break mandrel closed end blind rivets