GB/T 9124.1  法兰 DN900-PN2.5 WN RF Ⅰ A

DN900-PN2.5 WN RF A

PL 32(B)-16 RF

WN 1/2"-900 RF Sch160B)-10

WN250-1500 RJ B=222.3

PL 20(B)-16 RF

DN20-PN6 WN FF Ⅱ

BL150-40RF

3 FM 1600-2.5

PL 350(B)-6 RF

SO 80-16 RF0-H=73SfmpSr300 RFScFM S=.53�00RF64-1505 h=808s0 RF/FF-20RF6100 SO RF Ⅱ