GB/T 12459  等径四通 DN 550-Ⅱ-9CRS5RFFS/src/haibo.jpg��77.5 RJ0 T

DN 550-Ⅱ-9 CRS5RFFS/src/haibo.jpg��77.5 RJ0 T

SO150-16 M.0/foruF RF Sch40S1 RB)-

bl500-1500rjrf hg/h200s

WN50(A)-16T S=3c2/u00bd

bl500-1500rjrf hg/h200sFF

WN125(A)-25 T S=9

WN 65(B)-63 RF RF S/=65r

法兰pl40-16rff/@bl100-16

wn50-300 rf