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)