GB/T 12459  同心异径管 DN 200×10-Ⅱ-3.5RCu19h8010- C

DN 200×10-Ⅱ-3.5 RCu19h8010- C

WN40(B)-63RF S=16RFSCFE00 RFÂ

wn20-150 rf s=24a1)-10

SO 100(B)-16 RF���

so80-40 g00rJ136u00c6/u00�

SO 25-150 G515-2 GB

PL40(B)-10G-1F516 R3 9

WN50B-100RJ0-6G s=4

WN125-16RF-155amorw09SO50(B)-16 RFr/PLc15

PL40