FF-大直径钢制管法兰

FF-Large diameter steel pipe flange

RF-大直径钢制管法兰

RF-Large diameter steel pipe flange

RJ-大直径钢制管法兰

RJ-Large diameter steel pipe flange

FF-大直径钢制管法兰盖

FF-large size-Blind Flange

RF-大直径钢制管法兰盖

RF-large size-Blind Flange

RJ-大直径钢制管法兰盖

RJ-large size-Blind Flange