HG/T 20592  法兰盖 BL 450-40 MB-25RFRFfch40mp

BL450-40MB-25RFRFfch40mp

wn200(b)-16 rf0/

DN125-PN10 WN RF Ⅱch124750 RF Sch5028 RFch40S44F-R�@Sp&@t.5

LWN 25-150 RF H=681

wn15(B)-900 RF150 ac

WN 50(B)-40 RF S=3.5

WN 50-150 RF9402�п╠

BL 10"-150 RF S=4)

WN 50(B)-16 RF3877=12 C=50

LWN50-