601 gb/t 9074.8-1988 十字槽小盘头螺钉和弹簧垫圈及平垫圈组合件 cross recessed small pan head screw,single coil spring lock washer and plain washer assemblies

　　602 gb/t 9074.9-1988 十字槽沉头螺钉和锥形锁紧垫圈组合件 cross recessed countersunk head screw and countersunk serrated external toothed lock washer assemblies

　　603 gb/t 9074.10-1988 十字槽半沉头螺钉和锥形锁紧垫圈组合件 cross recessed raised countersunk head screw and countersunk external toothed lock washer assemblies

　　604 gb/t 9074.11-1988 十字槽凹穴六角头螺栓和平垫圈组合件 cross recessed hexagon bolt with indentation and plain washer assemblies

　　605 gb/t 9074.12-1988 十字槽凹穴六角头螺栓和弹簧垫圈组合件 cross recessed hexagon bolt with indentation and single coil spring lock washer assemblies

　　606 gb/t 9074.13-1988 十字槽凹穴六角头螺栓, 弹簧垫圈和平垫圈组合件 cross recessed hexagon bolt with indentation, single coil lock washer and plain washer assemblies

　　607 gb/t 9074.14-1988 六角头螺栓和平垫圈组合件 hexagon head bolt and plain washer assemblies

　　608 gb/t 9074.15-1988 六角头螺栓和弹簧垫圈组合件 hexagon head bolt and single coil spring lock washer assemblies

　　609 gb/t 9074.16-1988 六角头螺栓和外锯齿锁紧垫圈组合件 hexagon head bolt and serrated lock washer external teeth assemblies

　　610 gb/t 9074.17-1988 六角头螺栓, 弹簧垫圈和平垫圈组合件 hexagon head bolt, single coil spring lock washer and plain washer assemblies

　　611 gb/t 9074.18-1988 十字槽盘头自攻螺钉和平垫圈组合件 cross recessed pan head tapping screw and plain washer assemblies

　　612 gb/t 9074.19-1988 十字槽盘头自攻螺钉和大垫圈组合件 cross recessed pan head tapping screw and large plain washer assemblies

　　613 gb/t 9074.20-1988 十字槽凹穴六角头自攻螺钉和平垫圈组合件 cross recessed hexagon head tapping sorew with indentation and plain washer assemblies

　　614 gb/t 9074.21-1988 十字槽凹穴六角头自攻螺钉和大垫圈组合件 cross recessed hexagon head tapping screw with indentation and large plain washer assemblies

　　615 gb/t 9074.22-1988 六角头自攻螺钉和平垫圈组合件 hexagon head tapping screw and plain washer assemblies

　　616 gb/t 9074.23-1988 六角头自攻螺钉和大垫圈组合件 hexagon head tapping screw and big washer assemblies

　　617 gb/t 9074.24-1988 组合件用平垫圈 plain washer for assembly

　　618 gb/t 9074.25-1988 组合件用大垫圈 big plain washer for assembly

　　619 gb/t 9074.26-1988 组合件用弹簧垫圈 single coil spring lock washer for assembly

620 gb/t 9074.27-1988 组合件用外锯齿锁紧垫圈 serrated lock washer external teeth for assembly

　　621 gb/t 9074.28-1988 组合件用锥形锁紧垫圈 countersunk external toothed lock washer for assembly

　　622 gb/t 9074.29-1988 自攻螺钉组合件用平垫圈 samll wasner for tapping screw assembly

　　623 gb/t 9074.30-1988 自攻螺钉组合件用大垫圈 big washer for tapping screw assembly

　　624 gb/t 9112-1988 钢制管法兰类型 types for steel pipe flanges

　　625 gb/t 9113.1-1988 pn1.6mpa(16bar) 平面整体钢制管法兰 integral steel pipe flanges with flat face for pn1.6 mpa(16 bar)

　　626 gb/t 9113.2-1988 pn 2.0mpa(20bar)平面整体钢制管法兰 integral steel pipe flanges with flat face for pn 2.0 mpa(20bar)

　　627 gb/t 9113.3-1988 pn 1.6mpa(16 bar)凸面整体钢制管法兰 integral steel pipe flanges with raised face for pn1.6 mpa(16 bar)

　　628 gb/t 9113.4-1988 pn 2.5mpa(25 bar)凸面整体钢制管法兰 integral steel pipe flanges with raised face for pn2.5 mpa(25 bar)

　　629 gb/t 9113.5-1988 pn 4.0mpa(40 bar)凸面整体钢制管法兰 integral steel pipe flanges with raised face for pn4.0 mpa(40 bar)

　　630 gb/t 9113.6-1988 pn 2.0mpa(20 bar)凸面整体钢制管法兰 integral steel pipe flanges with raised face for pn2.0 mpa (20 bar)

　　631 gb/t 9113.7-1988 pn 5.0mpa(50 bar) 凸面整体钢制管法兰 integral steel pipe flanges with raised face for pn5.0 mpa (50 bar)

　632 gb/t 9113.8-1988 pn 10.0mpa(100 bar) 凸面整体钢制管法兰 integral steel pipe flanges with raised face for pn10.0mpa(100 bar)

　　633 gb/t 9113.9-1988 pn 1.6mpa(16 bar) 凹凸面整体钢制管法兰 integral steel pipe flanges with male and female face for pn 1.6mpa (16 bar)

　　634 gb/t 9113.10-1988 pn 2.5mpa(25 bar) 凹凸面整体钢制管法兰 integral steel pipe flanges with male and female face for pn 2.5mpa (25 bar)

　　635 gb/t 9113.11-1988 pn 4.0mpa(40 bar) 凹凸面整体钢制管法兰 integral steel pipe flanges with male and female face for pn 4.0mpa (40 bar)

　　636 gb/t 9113.12-1988 pn 5.0mpa(50 bar) 凹凸面整体钢制管法兰 integral steel pipe flanges with male and female face for pn 5.0mpa (50 bar)

　　637 gb/t 9113.13-1988 pn 10.0mpa(100 bar) 凹凸面整体钢制管法兰 integral steel pipe flanges with male and female face for pn 10.0mpa (100 bar)

　　638 gb/t 9113.14-1988 pn 15.0mpa(150 bar)凹凸面整体钢制管法兰 integral steel pipe flanges with male and female face for pn 15.0 mpa (150 bar)

　　639 gb/t 9113.15-1988 pn 25.0mpa(250 bar) 凹凸面整体钢制管法兰 integral steel pipe flanges with male and female face for pn 25.0mpa (250 bar)

　　640 gb/t 9113.16-1988 pn 1.6mpa(16 bar) 榫槽面整体钢制管法兰 integral steel pipe flanges with tongue and groove face for pn1.6mpa(16 bar)

　　641 gb/t 9113.17-1988 pn 2.5mpa(25 bar) 榫槽面整体钢制管法兰 integral steel pipe flanges with tongue and groove face for pn 2.5 mpa (25 bar)

642 gb/t 9113.18-1988 pn 4.0mpa(40 bar) 榫槽面整体钢制管法兰 integral steel pipe flanges with tongue and groove face for pn4.0mpa(40 bar)

　　643 gb/t 9113.19-1988 pn 5.0mpa(50 bar) 榫槽面整体钢制管法兰 integral steel pipe flanges with tongue and groove face for pn 5.0 mpa (50 bar)

　　644 gb/t 9113.20-1988 pn 10.0mpa(100 bar) 榫槽面整体钢制管法兰 integral steel pipe flanges with tongue and groove face for pn 10.0mpa (100 bar)

　　645 gb/t 9113.21-1988 pn 2.0mpa(20 bar) 环连接面整体钢制管法兰 integral steel pipe flanges with ring-joint face for pn 2.0mp(20 bar)

　　646 gb/t 9113.22-1988 pn 5.0mpa(50 bar) 环连接面整体钢制管法兰 integral steel pipe flanges with ring-joint face for pn 5.0mpa(50bar)

　　647 gb/t 9113.23-1988 pn 10.0mpa(100 bar) 环连接面整体钢制管法兰 integral steel pipe flanges with ring-joint face for pn 10.0mpa (100 bar)

　　648 gb/t 9113.24-1988 pn 15.0mpa(150 bar) 环连接面整体钢制管法兰 integral steel pipe flanges with ring-joint face for pn 15.0mpa (150 bar)

　　649 gb/t 9113.25-1988 pn 25.0mpa(250 bar) 环连接面整体钢制管法兰 integral steel pipe flanges with ring-joint face for pn 25.0mpa (250 bar)

　　650 gb/t 9113.26-1988 pn 42.0mpa(420 bar) 环连接面整体钢制管法兰 integral steel pipe flanges with ring-joint face for pn 42.0mpa (420 bar)