HG/T 20592  法兰盖 BL 80(B)-10 RF 未=41

bl 80(b)-10rf 未=41

WN 80 -150 RFFF3f1FFN=48 B=2

SO 125-40 RF

SO 25-300 RF´=17ch80 s=5.086 RF

WN 100-150 RF B=10 rf.009 S-150-150RF RF60RF)

wn200(a)-16 rf s=4h40am

bl125(B)-150 RF3100-1.0/1paFM800-6fR RF

BL 5"-400 RFSCH80F0RtmlF160 C=1S60