HG/T 20592  法兰 WN 900(B)-40 FM S=125sch,sf.1

WN 900(B)-40 FM S=125sch,sf.1

wn250(b)-25fms=10150R52RFFf/42

WNSO80(a)-150RFS=3

WN 1 1/4"-150 RF B=35.0829/m

BL80-300 FF L=1

wn400-10rf316l=426.40/-1.04-10515

SO 40-63 RFfs RFF D=108026

PL 50(A)-16 RF0 128Ã60m s=12.5Sch4045SCH406ch1

BL125-16Rf6