NB/T 47021  法兰 C-M 1500-0.25

47021 C-M1500-0.25

LWN50-300RF SCH40

WN 2"-150 RF S=6

BL250 -16 rf Sch40h40R6856RmRFFf1fppa4..M00@aF0300h40SSch60RF@443RF@AFF0 R

WN 40(B)-63 RJ S=6

WN 250(B)-16 RF S=7

WN 18"-150 RF Sch10S

BL 300-25 M S=8

SO 16"-150 RF

SO 10"-300