突面 meaning in Chinese

raised face (rf)

Intergral steel pipe flanges with flat face or raised face
平面突面整体钢制管法兰
Hubbed socket welding steel pipe flanges with raised face
突面带颈承插焊钢制管法兰
Steel pipe blank flanges with flat face or raised face
平面突面钢制管法兰盖
Hubbed screwed steel pipe flanges with raised face
突面带颈螺纹钢制管法兰
Loose plate steel pipe flanges with weld - on collar with raised face
突面平焊环板式松套钢制管法兰

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