GB/T 12459  弯头 DN 65-Ⅱ-490ESd=&ampampampamp

DN 65-Ⅱ-4 90ESd=&ampampampamp

BL450-16fm4mpam.6 /- Sc.16RFN8

WN15B-40RF

WN 1 1/2"-150 RF Sch40S

SO10"-150 RF

DN350-PN16 PL RF Ⅱ B=360

WN 40(B)-25 RF S=10

PJ/RJ 100(B)-10 RF

SO150-150 RF

3 FM 550-2.5 δ0=8def6ES46��@RF@4F B=782 SF