GB/T 29465  法兰 C-G 1650-0.6/20δ0=1680pam

5 CG 1650-0.620δ0=1680pam

LWN500-600RFjt1300/2/ a

wn65-25rf0 RFF6 Nc0-1.600-1.66-159S-1

wn200(b)-10rfm/

BI 2500 LFM Sch40CH10SF/

wn600-150 rf s=10O2.5

WN 1"-600 RF Sch10S

SO 200-150 RF

WN400-63 M6 C=F B=7=

WN 50(B)-40 RF S=17Lh.80Sph H1=70-FRF6