钢: sharpen; strop; whet制管: tubulation法兰: flange连接: connect; fit together; link; ...强度: intensity; strength; magnitu ...计算方法: computing method; method of ...钢制管法兰连接用八角形金属环垫: octagonal metallic ring gaskets for steel pipe flanges joints钢制管法兰连接用金属环垫技术条件: specification for metallic ring gaskets for steel pipe flange joints钢制管法兰连接用椭圆形金属环垫: oval metallic ring gaskets for steel pipe flange joints钢制管法兰: specification for steel pipe flanges; types and parameters 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钢制管法兰类型: types for steel pipe flanges gb/t 1-pn6mpa(16bar)平面钢制管法兰盖: steel pipe blank flanges with flat face for pn 6mpa凸面钢制管法兰盖: steel pipe blank flanges with raised face for pn 0mpa突面钢制管法兰盖: steel pipe blank flanges with flat face or raised face环连接面带颈承插焊钢制管法兰: hubbed socket welding steel pipe flanges with ring-joint face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 0mpa环连接面对焊环带颈松套钢制管法兰: loose hubbed steel pipe flanges with welding neck collar with ring-joint faceansi钢制管法兰和附件标准: ansi standard pipe flanges and fittings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
