凹凸面对焊钢制管法兰 steel pipe welding neck flanges with male and female face for pn 0mpa; steel pipe welding neck flanges with male and female face for pn 5mpa; steel pipe welding neck flanges with male and female face for pn mpa
凹凸面钢制管法兰盖 steel pipe blank flanges with male and female face for pn 0mpa
凹凸面整体钢制管法兰 integral steel pipe flanges with male and female face for pn 0mpa; integral steel pipe flanges with male and female face for pn 5mpa; integral steel pipe flanges with male and female face for pn 6mpa; integral steel pipe flanges with male and female face for pn mpa
板式翻边松套钢制管法兰 loose plate steel pipe flanges with lapped pipe end for pn 0mpa
钢制管法兰对焊端部 butt-welding ends for steel pipe flanges
钢制管法兰压力温度等级 pressure-temperature ratings for steel pipe flanges
环连接面对焊钢制管法兰 steel pipe welding neck flanges with ring-joint face for pn 0mpa
环连接面钢制管法兰盖 steel pipe blank flanges with ring-joint face for pn 0mpa
环连接面整体钢制管法兰 integral steel pipe flanges with ring-joint face for pn 0mpa
平面、突面对焊钢制管法兰 steel pipe welding neck flanges with flat face or raised face
平面板式平焊钢制管法兰 slip-on welding plate steel pipe flanges with flat face for pn 6mpa
平面带颈平焊钢制管法兰 hubbed slip-on-welding steel pipe flanges with flat face for pn 0mpa
平面对焊钢制管法兰 steel pipe welding neck flanges with flat face for pn 25mpa; steel pipe welding neck flanges with flat face for pn 6mpa; steel pipe welding neck flanges with flat face for pn0mpa; steel pipe welding neck flanges with flat face for pn6mpa