HG/T 20592  法兰盖 BL 150-40 RF

hg/t20592 bl150-40rf

so300(b)-16fm/forum.html

wn500(B)-300 RF sch40s

HG/T20615 BL20-300 RF

wn500b)-16rf0RFf81/763.5rampam=48 S=0m sFFf

PL 150(B)-10 RF2RFS FF1RF21JLF351FS1606@b50 RF Sch10S

WN50-25 RF RF RF S=144

LWN100-300 RF B=80

WN 250(B)-10 RF S=5