GB/T 12459  等径四通 DN 25-Sch40CRS50-

DN 25-Sch40 CRS50-

BL80-10RFsCH40F1/6R22.302010BL40

20592wn100A-63rfS=7.1

WN 40(B)-16 RF60 S=

B WN 1200-150 RF Sch80 S=12

bi180.5c l5ch80RRF06mn6rfR

WN 32-150 rf sch40F0 RF Schrf/-6 R=236 rf16 RF

BL 600-25 RFs=5-150-10rf5 C

PL500(B)-25RF-1.6 s=18

PL