法兰 WN 250-63 M1Ã/70-RF B=43H40 H=20/s0-

wn250a-63m1Ã/70-RF B=43H40 H=20/s0-

LWN40-300 RJ H=392 Sc3/G/T2061550rf s=3 r=74

wn25(b)-25fm s=5 S=3.25000-6J0RJ198d=1955rf-40

HWN100-150 RF

SO 80-600RF0/rf

023 FM2000-2.5/144-27000RFB25h8

1 M 1400-0.25 δs=10

47023 Rf500-12.5/70FRFF Sch40BJ Sch