NB/T 47021  法兰 C-RF 400-1.0 s120S=136.3--0.6/70-165/7B WN1ƒ10RF121RF)0-46680sh

47021 crf400-1.0 s120S=136.3--0.6/70-165/7B WN1ƒ10RF121RF)0-46680sh

SOH RF 5K 20AL200(B)-16

so450-150rf=1

A WN700-900RJ/R

WN40-600 RJ Sc/(B)-16

so 65-40 RFF-2.5 RFR

bi 500 b3=1FRF N= RF00 RFF610 RF

WN 32(B)-160 RJ S=6

BL20-1500 RF)-1022.2F 0-150

wn