HG/T 20592  法兰 WN 500-2.5 FF4300-10205950-RF S/

WN 500-2.5FF4300-10205950-RF S/

LWN 50-600 RJ5RF D=140161000-1.0a

LJ 3 1/2"-400 LT Sch160FF B=6/data

HG/T20615 WN450-150RF9 ScfF460-15-п╩Б■░Б■╛п∙п╩п┴п═я∙я÷п═я°п┼п╩Б■░п═я°я п╩�

DN 600-Ⅱ-