NB/T 47022  法兰 RF 1500-0.6/50/15470RF00800-

nb47022 RF1500-0.650/15470RF00800-

WN80-1500 FM4.1=3

WN65B)-100 fm0S)-

9pl300(b)-16rf–њ¬©–

wn32(b)-16ff

BL450-150 RFS)

WN50-2500 RF B=57

wn80-150 g 8/RJ32 n=12Р РҺРўСһР РҶРІ

BL 100-25 RFÂ88/021500.27mm)sc6/4RF5BII 10mD00.27

WN60