GB/T 12459  弯头 DN 100-1090ESR56-=5=1

DN 100-10 90ESR56-=5=1

PL300(B)-16 RF C=44/0

BL250-16T/B1F b=a-01080s4.0-)-Sc10F0c1.6 ÃÆ

A 1000/6F110/42-1/)-2.5rf W0-300-16-2.5/40-11

PL 300(B)-10 RF261611)-16Fn

A 10009 PL25/m0=4.8 B=Fx/F

so300-900rj hg/RFS=188.5-16RF0592径w

WN50-100T