HG/T 20592  法兰 WN 80-16 RF S=3.5

wn80-16 RF S=3.5

WN80-150 RF B=77

WN 500(B)-25 RF S=120

WN 40-600 RJ Sch1 RFF1h8�Ҫ)-25 RFhF7.5 RJf scF55Fl45

DN 200×125Ⅱ-3 RC

SO500(B)-10T.0fF S0400 RF

LWN600-150 RF

so25(a)-150RFFch40S6�77.50

WN 14"-300 RF Sch80F S=5.5 RF

47023 C-T1500-