HG/T 20592  法兰 SO 125(B)-40 RF C=34 Hf b=4840-180011=1.4ch8d=

SO125(B)-40 RF C=34 Hf b=4840-180011=1.4ch8d=

wn50-25rf S=90 K40 FF5 rRF S=4.

WN 2"-150 RF S=2.77

BL250-160 RFnbsptg/1a)S=15WN600-6mp H=192Fb=4 f1=3150 RF RF980/

HG/T20592 SO15-16RF/12 B00rF0f b

WN40(B)-1500RFrf s805 M50 RF Sch80S/F-14scF

BL 500