GB/T 12459  等径三通 DN 800-Sch10STSSc b

DN 800-Sch10S TSSc b

PL10A-6RF0s5C0RF@k0 RJ SF RF Sc4F

WN 250(B)-63 M S=8.8

47065.2 A1-500

LWN 40-300 RF Sch80 RFSch800RF6.s=8F306rfδ

wn 400-900 rj64036Rf-10F3.5,20ch

PL 80(B)-10 FF0F /da

BL800-150 RF0600 SC

NB/T47065.4 A3M S=6M=435(B)-10 s

WN 450-9