GB/T 12459  同心异径管 DN 350×15-Ⅱ-12RC94-500 FMwn40-150r

DN 350×15-Ⅱ-12 RC94-500 FMwn40-150r

SO 125-150 RF20h41H=350.585

PL400B-40RF-1.0

PL25(B)-10RF10r20f50RF4)-40fm-sch3000(4sR

pl 125(B)-16RF &)-40fm20S-/f5.60 D

SO25 -150 RFm900-00-4.0/46

20592 WN250(B)-25RF/20-1506 1

WN 300-150 RF Sch40S0-4.0/5-

SO4