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)

651 GB/T 9114.1-1988 PN 0.6MPa(6 bar)凸面带颈螺纹钢制管法兰 Hubbed screwed steel pipe flanges with raised face for PN 0.6MPa (6 bar)
652 GB/T 9114.2-1988 PN 1.0MPa(10 bar) 凸面带颈螺纹钢制管法兰 Hubbed screwed steel pipe flanges with raised face for PN 1.0MPa (10 bar)
653 GB/T 9114.3-1988 PN 2.5MPa(25 bar) 凸面带颈螺纹钢制管法兰 Hubbed screwed steel pipe flanges with raised face for PN 2.5MP (25 bar)
654 GB/T 9115.1-1988 PN 0.25MPa(2.5 bar) 平面对焊钢制管法兰 Steel pipe welding neck flanges with flat face for PN 0.25MPa (2.5 bar)
655 GB/T 9115.2-1988 PN 0.6MPa(6 bar)平面对焊钢制管法兰 Steel pipe welding neck flanges with flat face for PN 0.6MPa (6 bar)
656 GB/T 9115.3-1988 PN 1.0MPa(10 bar)平面对焊钢制管法兰 Steel pipe welding neck flanges with flat face for PN1.0MPa (10 bar)
657 GB/T 9115.4-1988 PN 1.6MPa(16 bar) 平面对焊钢制管法兰 Steel pipe welding neck flanges with flat face for PN1.6MPa (16 bar)
658 GB/T 9115.5-1988 PN 2.0MPa(20 bar) 平面对焊钢制管法兰 Steel pipe welding neck flanges with flat face for PN2.0MPa (20 bar)
659 GB/T 9115.6-1988 PN 0.25MPa(2.5 bar) 凸面对焊钢制管法兰 Steel pipe welding neck flanges with raised face for PN 0.25MPa (2.5 bar)
660 GB/T 9115.7-1988 PN 0.6MPa(6 bar)凸面对焊钢制管法兰 Steel pipe welding neck flanges with raised face for PN 0.6MPa (6 bar)
661 GB/T 9115.8-1988 PN 1.0MPa(10 bar) 凸面对焊钢制管法兰 Steel pipe welding neck flanges with raised face for PN 1.0MPa (10 bar)
662 GB/T 9115.9-1988 PN 1.6MPa(16 bar) 凸面对焊钢制管法兰 Steel pipe welding neck flanges with raised face for PN 1.6MPa (16 bar)
663 GB/T 9115.10-1988 PN 2.5MPa(25 bar) 凸面对焊钢制管法兰 Steel pipe welding neck flanges with raised face for PN 2.5MPa (25 bar)
664 GB/T 9115.11-1988 PN 4.0MPa(40 bar) 凸面对焊钢制管法兰 Steel pipe welding neck flanges with raised face for PN 4.0MPa (40 bar)
665 GB/T 9115.12-1988 PN 2.0MPa(20 bar) 凸面对焊钢制管法兰 Steel pipe welding neck flanges with raised face for PN 2.0MPa (20 bar)

666 GB/T 9115.13-1988 PN 5.0MPa(50 bar) 凸面对焊钢制管法兰 Steel pipe welding neck flanges with raised face for PN 5.0MPa (50 bar)
667 GB/T 9115.14-1988 PN 10.0MPa(100 bar) 凸面对焊钢制管法兰 Steel pipe welding neck flanges with raised face for PN 10.0MPa (100 bar)
668 GB/T 9115.15-1988 PN 15.0MPa(150 bar) 凸面对焊钢制管法兰 Steel pipe welding neck flanges with raised face for PN 15.0MPa (150 bar)
669 GB/T 9115.16-1988 PN 25.0MPa(250 bar) 凸面对焊钢制管法兰 Steel pipe welding neck flanges with raised face for PN 25.0MPa (250 bar)
670 GB/T 9115.17-1988 PN 1.6MPa(16 bar) 凹凸面对焊钢制管法兰 Steel pipe welding neck flanges with male and female face for PN 1.6 MPa (16 bar)
671 GB/T 9115.18-1988 PN 2.5MPa(25 bar) 凹凸面对焊钢制管法兰 Steel pipe welding neck flanges with male and female face for PN 2.5MPa (25 bar)
672 GB/T 9115.19-1988 PN 4.0MPa(40 bar) 凹凸面对焊钢制管法兰 Steel pipe welding neck flanges with male and female face for PN 4.0MPa (40 bar)
673 GB/T 9115.20-1988 PN 5.0MPa(50 bar) 凹凸面对焊钢制管法兰 Steel pipe welding neck flanges with male and female face for PN 5.0MPa (50 bar)
674 GB/T 9115.21-1988 PN 10.0MPa(100 bar) 凹凸面对焊钢制管法兰 Steel pipe welding neck flanges with male and female face for PN 10.0MPa (100 bar)
675 GB/T 9115.22-1988 PN15.0MPa(150 bar) 凹凸面对焊钢制管法兰 Steel pipe welding neck flanges with male and female face for PN 15.0MPa (150 bar)
676 GB/T 9115.23-1988 PN 25.0 MPa(250bar)凹凸面对焊钢制管法兰 Steel pipe welding neck flanges with male and female face for PN 25.0MPa (250 bar)
677 GB/T 9115.24-1988 PN 1.6 MPa (16 bar)榫槽面对焊钢制管法兰 Steel pipe welding neck flanges with tongue and groove face for PN 1.6MPa (16 bar)
678 GB/T 9115.25-1988 PN 2.5 MPa (25 bar) 榫槽面对焊钢制管法兰 Steel pipe welding neck flanges with tongue and groove face for PN 2.5MPa (25 bar)
679 GB/T 9115.26-1988 PN 4.0 MPa (40 bar)榫槽面对焊钢制管法兰 Steel pipe welding neck flanges with tongue and groove face for PN 4.0MPa (40 bar)
680 GB/T 9115.27-1988 PN 5.0 MPa(50 bar) 榫槽面对焊钢制管法兰 Steel pipe welding neck flanges with tongue and groove face for PN 5.0MP (50 bar)

681 GB/T 9115.28-1988 PN 10.0MPa(100 bar) 榫槽面对焊钢制管法兰 Steel pipe welding neck flanges with tongue and groove face for PN 4.0MPa (40 bar)
682 GB/T 9115.29-1988 PN 15.0MPa(150 bar) 榫槽面对焊钢制管法兰 Steel pipe welding neck flanges with tongue and groove face for PN 15.0MPa (150 bar)
683 GB/T 9115.30-1988 PN 25.0MPa(250 bar) 榫槽面对焊钢制管法兰 Steel pipe welding neck flanges with tongue and groove face for PN 15.0MPa (150 bar)
684 GB/T 9115.31-1988 PN 2.0MPa(20 bar) 环连接面对焊钢制管法兰 Steel pipe welding neck flanges with ring-joint face for PN 2.0MPa (20 bar)
685 GB/T 9115.32-1988 PN 5.0MPa(50 bar) 环连接面对焊钢制管法兰 Steel pipe welding neck flanges with ring-joint face for PN 5.0NPa (50 bar)
686 GB/T 9115.33-1988 PN 10.0MPa(100 bar) 环连接面对焊钢制管法兰 Steel pipe welding neck flanges with ring-joint face for PN10.0MPa (100 bar)
687 GB/T 9115.34-1988 PN 15.0MPa(150 bar) 环连接面对焊钢制管法兰 Steel pipe welding neck flanges with ring-joint face for PN 15.0MPa (150 bar)
688 GB/T 9115.35-1988 PN 25.0MPa(250 bar) 环连接面对焊钢制管法兰 Steel pipe welding neck flanges with ring-joint face for PN 25.0MPa (250 bar)
689 GB/T 9115.36-1988 PN 42.0MPa(420 bar) 环连接面对焊钢制管法兰 STEEL pipe welding neck flanges with ring-joint face for PN 42MPa (420 bar)
690 GB/T 9116.1-1988 PN 1.0MPa(10 bar) 平面带颈平焊钢制管法兰 Hubbed slip-on-welding steel pipe flanges with flat face for PN 1.0MPa (10 bar)
691 GB/T 9116.2-1988 PN 1.6MPa(16 bar) 平面带颈平焊钢制管法兰 Hubbed slip-on-welding steel pipe flanges with flat face for PN 1.6 MPa (16 bar)
692 GB/T 9116.3-1988 PN 2.0MPa(20 bar) 平面带颈平焊钢制管法兰 Hubbed slip-on-welding steel pipe flanges with flat face for PN 2.0MPa (20 bar)
693 GB/T 9116.4-1988 PN 1.0MPa(10 bar) 凸面带颈平焊钢制管法兰 Hubbed slip-on-welding steel pipe flanges with raised face for PN 1.0MPa (10 bar)
694 GB/T 9116.5-1988 PN 1.6MPa(16 bar) 凸面带颈平焊钢制管法兰 Hubbed slip-on-welding steel pipe flanges with raised face for PN 1.6MPa (16 bar)

695 GB/T 9116.6-1988 PN 2.5MPa(25 bar) 凸面带颈平焊钢制管法兰 Hubbed slip-on-welding steel pipe flanges with raised face for PN 2.5MPa (25 bar)
696 GB/T 9116.7-1988 PN 4.0MPa(40 bar) 凸面带颈平焊钢制管法兰 Hubbed slip-on-welding steel pipe flanges with raised face for PN 4.0MPa (40 bar)
697 GB/T 9116.8-1988 PN 2.0MPa(20 bar) 凸面带颈平焊钢制管法兰 Hubbed slip-on-welding steel pipe flanges with raised face for PN 2.0MPa (20 bar)
698 GB/T 9116.9-1988 PN 5.0MPa(50 bar) 凸面带颈平焊钢制管法兰 Hubbed slip-on-welding steel pipe flanges with raised face for PN 5.0MPa (50 bar)
699 GB/T 9116.10-1988 PN 10.0MPa(100 bar) 凸面带颈平焊钢制管法兰 Hubbed slip-on-welding steel pipe flanges with raised face for PN 10.0MPa (100 bar)
700 GB/T 9116.11-1988 PN 1.6MPa(16 bar) 凹凸面带颈平焊钢制管法兰 Hubbed slip-on-welding steel pipe flanges with male and female face for PN 1.6MPa (16 bar)

701 GB/T 9116.12-1988 PN 2.5MPa(25 bar) 凹凸面带颈平焊钢制管法兰 Hubbed slip-on-welding steel pipe flanges with male and female face for PN 2.5MPa (25 bar)
702 GB/T 9116.13-1988 PN 4.0MPa(40 bar) 凹凸面带颈平焊钢制管法兰 Hubbed slip-on-welding steel pipe flanges with male and female face for PN 4.0MPa (40 bar)
703 GB/T 9116.14-1988 PN 5.0MPa(50 bar) 凹凸面带颈平焊钢制管法兰 Hubbed slip-on-welding steel pipe flanges with male and female face for PN 5.0MPa (50 bar)
704 GB/T 9116.15-1988 PN 10.0MPa(100 bar) 凹凸面带颈平焊钢制管法兰 Hubbed slip-on-welding steel pipe flanges with male and female face for PN 10.OMPa (100 bar)
705 GB/T 9116.16-1988 PN 1.6MPa(16 bar) 榫槽面带颈平焊钢制管法兰 Hubbed slip-on-welding steel pipe flanges with tongue and groove face for PN 1.6MPa (16 bar)
706 GB/T 9116.17-1988 PN 2.5MPa(25 bar) 榫槽面带颈平焊钢制管法兰 Hubbed slip-on-welding steel pipe flanges with tongue and groove face for PN2.5MPa (25 bar)
707 GB/T 9116.18-1988 PN 4.0MPa(40 bar) 榫槽面带颈平焊钢制管法兰 Hubbed slip-on-welding steel pipe flanges with tongue and groove face for PN 4.0MPa (40 bar)
708 GB/T 9116.19-1988 PN 5.0MPa(50 bar) 榫槽面带颈平焊钢制管法兰 Hubbed slip-on-welding steel pipe flanges with tongue and groove face for PN 5.0MPa (50 bar)
709 GB/T 9116.20-1988 PN 10.0MPa(100 bar) 榫槽面带颈平焊钢制管法兰 Hubbed slip-on-welding steel pipe flanges with tongue and groove face for PN 10.0MPa (100 bar)
710 GB/T 9116.21-1988 PN 2.0MPa(20 bar) 环连接面带颈平焊钢制管法兰 Hubbed slip-on-welding steel pipe flanges with ring-joint face for PN 2.0MPa (20 bar)
711 GB/T 9116.22-1988 PN 5.0MPa(50 bar) 环连接面带颈平焊钢制管法兰 Hubbed slip-on-welding steel pipe flanges with ring-joint face for PN 5.0MPa (50 bar)
712 GB/T 9116.23-1988 PN 10.0MPa(100 bar) 环连接面带颈平焊钢制管法兰 Hubbed slip-on-welding steel pipe flanges with ring-joint face for PN 10.0MPa (100 bar)
713 GB/T 9116.24-1988 PN 15.0MPa(150 bar) 环连接面带颈平焊钢制管法兰 Hubbed slip-on-welding steel pipe flanges with ring-joint face for PN 15.0MPa (150 bar)
714 GB/T 9116.25-1988 PN 25.0MPa(250 bar) 环连接面带颈平焊钢制管法兰 Hubbed slip-on-welding steel pipe flanges with ring-joint face for PN 25.0MPa (250 bar)
715 GB/T 9117.1-1988 PN 2.0MPa(20 bar) 平面带颈承插焊钢制管法兰 Hubbed socked welding steel pipe flanges with flat face for PN 2.0MPa (20 bar)
716 GB/T 9117.2-1988 PN 2.0MPa(20 bar) 凸面带颈承插焊钢制管法兰 Hubbed socket welding steel pipe flanges with raised face for PN 2.0MPa (20 bar)
717 GB/T 9117.3-1988 PN 5.0MPa(50 bar) 凸面带颈承插焊钢制管法兰 Hubbed socket welding steel pipe flanges with raised face for PN 5.0MPa (50 bar)
718 GB/T 9117.4-1988 PN 10.0MPa(100 bar) 凸面带颈承插焊钢制管法兰 Hubbed socket welding steel pipe flanges with raised face for PN 10.0MPa (100 bar)
719 GB/T 9117.5-1988 PN 5.0MPa(50 bar) 凹凸面带颈承插焊钢制管法兰 Hubbed socket welding steel pipe flanges with male and female face for PN 5.0MPa (50 bar)
720 GB/T 9117.6-1988 PN 10.0MPa(100 bar) 凹凸面带颈承插焊钢制管法兰 Hubbed socket welding steel pipe flanges with male and female face for PN 10.0MPa (100 bar)
721 GB/T 9117.7-1988 PN 5.0MPa(50 bar) 榫槽面带颈承插焊钢制管法兰 Hubbed socket welding steel pipe flanges with tongue and groove face for PN 5.0MPa (50 bar)
722 GB/T 9117.8-1988 PN 10.0MPa(100 bar) 榫槽面带颈承插焊钢制管法兰 Hubbed socket welding steel pipe flanges with tongue and groove face for PN 10.0MPa (100 bar)
723 GB/T 9118.1-1988 PN 2.0MPa(20 bar) 凸面对焊环松套带颈钢制管法兰 Loose hubbed steel pipe flanges with welding neck collar with raised face for PN 2.0MPa (20 bar)
724 GB/T 9118.2-1988 PN 5.0MPa(50 bar) 凸面对焊环松套带颈钢制管法兰 Loose hubbed steel pipe flanges with welding neck collar with raised face for PN 5.0MPa (50 bar)
725 GB/T 9118.3-1988 PN 2.0MPa(20 bar) 环连接面对焊环松套带颈钢制管法兰 Loose hubbed steel pipe flanges with welding neck collar with ring-joint face for PN 2.0MPa (20 bar)
726 GB/T 9118.4-1988 PN 5.0MPa(50 bar) 环连接面对焊环松套带颈钢制管法兰 Loose hubbed steel pipe flanges with welding neck collar with ring-joint face for PN 5.0MPa (50 bar)
727 GB/T 9118.5-1988 PN 10.0MPa(100 bar) 环连接面对焊环松套带颈钢制管法兰 Loose hubbed steel pipe flanges with welding neck collar with ring-joint face for PN 10.0MPa (100 bar)
728 GB/T 9118.6-1988 PN 15.0MPa(150 bar) 环连接面对焊环松套带颈钢制管法兰 Loose hubbed steel pipe flanges with welding neck collar with ring-joint face for PN 15.0MPa (150 bar)
729 GB/T 9118.7-1988 PN 25.0MPa(250 bar) 环连接面对焊环松套带颈钢制管法兰 Loose hubbed steel pipe flanges with welding neck collar with ring-joint face for PN 25.0MPa (250 bar)
730 GB/T 9118.8-1988 PN 42.0MPa(420 bar) 环连接面对焊环松套带颈钢制管法兰 Loose hubbed steel pipe flanges with welding neck collar with ring-joint face for PN 42.0MPa (420 bar)
731 GB/T 9119.1-1988 PN 0.25MPa(2.5 bar) 平面板式平焊钢制管法兰 Slip-on welding plate steel pipe flanges with flat face for PN 0.25MPa (2.5 bar)
732 GB/T 9119.2-1988 PN 0.6MPa(6 bar)平面板式平焊钢制管法兰 Slip-on welding plate steel pipe flanges with flat face for PN 0.6MPa (6 bar)
733 GB/T 9119.3-1988 PN 1.0MPa(10 bar) 平面板式平焊钢制管法兰 Slip-on welding plate steel pipe flanges with flat face for PN 1.0MPa (10 bar)
734 GB/T 9119.4-1988 PN 1.6MPa(16 bar) 平面板式平焊钢制管法兰 Slip-on welding plate steel pipe flanges with flat face for PN 1.6MPa (16 bar)
735 GB/T 9119.5-1988 PN 0.25MPa(2.5 bar) 凸面板式平焊钢制管法兰 Slip-on welding plate steel pipe flanges with raised face for PN 0.25MPa (2.5 bar)
736 GB/T 9119.6-1988 PN 0.6MPa(6 bar)凸面板式平焊钢制管法兰 Slip-on welding plate steel pipe flanges with raised face for PN 0.6MPa (6 bar)
737 GB/T 9119.7-1988 PN1.0MPa(10 bar) 凸面板式平焊钢制管法兰 Slip-on welding plate steel pipe flanges with raised face for PN 1.0MPa (10 bar)
738 GB/T 9119.8-1988 PN 1.6MPa(16 bar) 凸面板式平焊钢制管法兰 Slip-on welding plate steel pipe flanges with raised face for PN 1.6MPa (16 bar)
739 GB/T 9119.9-1988 PN 2.5MPa(25 bar) 凸面板式平焊钢制管法兰 Slip-on welding plate steel pipe flanges with raised face for PN 2.5MPa (25 bar)
740 GB/T 9119.10-1988 PN 4.0MPa(40 bar) 凸面板式平焊钢制管法兰 Slip-on welding plate steel pipe flanges with reised face for PN 4.0MPa (40 bar)
741 GB/T 9120.1-1988 PN 2.5MPa(25 bar) 凸面对焊环松套板式钢制管法兰 Loose plate steel pipe flanges with welding neck collar with raised face for PN 2.5MPa (25 bar)
742 GB/T 9120.2-1988 PN 4.0MPa(40 bar) 凸面对焊环松套板式钢制管法兰 Loose plate steel pipe flanges with welding neck collar with raised face for PN 4.0MPa (40 bar)
743 GB/T 9120.3-1988 PN 2.5MPa(25 bar) 凹凸面对焊环松套板式钢制管法兰 Loose plate steel pipe flanges with welding neck collar with male and female face for PN2.5MPa (25 bar)
744 GB/T 9120.4-1988 PN 4.0MPa(40 bar) 凹凸面对焊环松套板式钢制管法兰 Loose plate steel pipe flanges with welding neck collar with male and female face for PN 4.0MPa (40 bar)
745 GB/T 9120.5-1988 PN 2.5MPa(25 bar) 榫槽面对焊环松套板式钢制管法兰 Loose plate steel pipe flanges with welding neck collar with tongue and groove face for PN 2.5MPa (25 bar)
746 GB/T 9120.6-1988 PN 4.0MPa(40 bar) 榫槽面对焊环松套板式钢制管法兰 Loose plate steel pipe flanges with welding neck collar with tongue ans groove face for PN 40MPa (40 bar)747 GB/T 9121.1-1988 PN 0.6MPa(6 bar)凸面平焊环松套板式钢制管法兰 Loose plate steel pipe flanges with weld-on-collar with raised face for PN 0.6MPa (6 bar)
748 GB/T 9121.2-1988 PN 1.0MPa(10 bar) 凸面平焊环松套板式钢制管法兰 Loose plate steel pipe flanges with weld-on collar with raised face for PN 1.0MPa (10 bar)
749 GB/T 9121.3-1988 PN 1.6MPa(16 bar) 凸面平焊环松套板式钢制管法兰 Loose plate steel pipe flanges with weld-on collar with raised face for PN 1.6MPa (16 bar)
750 GB/T 9121.4-1988 PN 2.5MPa(25 bar) 凸面平焊环松套板式钢制管法兰 Loose plate steel pipe flanges with weid-on collar with raised face for PN 2.5MPa (25 bar)