HG/T 20592  法兰 PL 65(B)-25 RF=4

PL65(B)-25 RF=4

WN 22"-150 RF Sch80S6.4/1

wn25-300RF HG/T2061525RF-2=66S600-4.0F 60

WN32-16RF S=4.5F S0.6Ã B WN32-00592-

3 B2FPL50Bamb)2-023pa

PL200B-10RFb=3-2085 f12.5/5S

SO 400-10RF5-1SFM6 R

SO40(B)-40M/16 Rf1=30(B)-16S=2.

PL500B-25 RFf2