HG/T 20592  法兰 WN 600-25 RF S=10.3=8

WN600-25RF S=10.3=8

WN 40-150 RF Sch40S0N=61 å…° so40(a)-150

DN80-PN25 WN RF Ⅱ B=60

SO25(A)-150RFГ �

3 CFM 600-1.6 δ0=8 δ=5

BL25-150 RFlass0--6=105IRF/ HG0 K=M00um.htm0 RFR

WN 20-150 RF S=3

wn50a-16 rf s=650

WN40(B)-2500 T0 HG/T/202480S