HG/T 20592  法兰 WN 250(B)-40 RF S=1105(b)-25

WN 250(B)-40 RF S=1105(b)-25

HP-2 RF Sch25Sch600oRF S=4F Sch40

SO 25(B)-16 RF B=1000-

WN 80-63 RF=128 f

WN125B-10RF/0RF00m1o1300-4.00-

SO 1 1/2"-1500 RF sch8000RF Sch40760 LG06rf0L FFG/80 FF

TPB-6/=46M S=4

wn50-25rjc00-1.6S0(B)RF0RJ00

WN250-160