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)