HG/T 20623  法兰 PL 1200(B)-150 RF=+C=+f/F=

PL 1200(B)-150 RF=+C=+f/F=

SO 32(B)-16 RF/h=163g01s=36 FM HG/7=580FRF RF10б

WN50(B)-2500 RJ9 W154 RCH40TG3HG/T216335 b=4 A

WN25-150FM8 H=30+=56f1F Ds=F K=200)-16

3fm900-1.025 RFch

BL80-300M8040S70 RF00-

BI 400 b1F5 s-5-1S 18020-F C=5=1200c06rf

WN 2