HG/T 20592  法兰 PL 40(B)-25 RFH=5160=89 B DsSF SCH40S SrS=-10

PL40(B)-25RFH=5160=89 B DsSF SCH40S SrS=-10

WN50-16 RF S=≥5.

WN80(B)-25 RF S=480150-1.60

WN500(B)-25 RFf0 RFfm-schS=2.7-93 nR h16

BL 50-150 RF0s=7920 B/u4&a

WN 32-10 RF S

wn150(b)-40ms=1=3.2B)-16GA

wn65B-16rf=22.6/amb0161010 s=18F810=/0-4h405

wn80-