GB/T 12459  异径三通 DN 1150×1150×450-Sch60TR� R

DN 450×450×1150-Sch60 TR� R

BL 150-16 RF27 d3=F550 R

pl100(b)-16 rf c=1 Sch

IF 300-900 RF65(b)-16ff0B)-1

SO500-16 MF0S=3.918

bl100-25M00-150 RFF0-1m

LWN100-300 RF=rf0 S30

IF 20-16 M6RF1f-10R-3016Fr

lwn15-300rf1058fsch40SRF

WN 40-300 RF Sch10S-265