NB/T 47021  法兰 C-RF 700-0.25 δs=

1 CRF 700-0.25 δs=

BL150-16 RF60-300)-10FM S=1

2 FF 3000-0.25 О

pl40-40 rfRFS=204 CRFR2

SO 200(B)-16 FF/01F1500-0FM40MFp hg/

BL100-40G901.0/80ch402-15-RF, �0Ã�б═п╒0

LWN 40-150 RFgb/t16FFv-16

B WN800-150RF B=77

WN100-16RFma-13m- RF RFFJrj