GB/T 12459  弯头 DN 200-845ELJ Spampa3)-16 R

DN 200-8 45ELJ Spampa3)-16 R

BL 100-150 FF C=6 L=18

BL50-150RF Sch80S/2061500 RFs=8 D=533.6 b453 d1=41

SO25-300 RF26 K===698fmCH40S22 RF0(B)-40 R

pl150(b)-10 ff d=330

WN25-300RFB=87 s21rf-300rj0-0.TS

4702 c-fm1600-0.6rf1

WN50- 300RF Sc/AA=51F0s

SO250