HG/T 20592  法兰 WN 300(B)-40 FM C=4rj00B).2bl2-1.0F S= A

WN300(B)-40FM C=4rj00B).2bl2-1.0F S= A

WN250(A)-40M0=14 Sch4R

wn15-150 rf s=4A16 RF

47065 bii1700-f h=5

BL25(B)-16 RF/1050.ampampampa Sch40F00A7 RFp/(S)╠

wn600-16rf/A=20=061/f1

WN40(b)-16 RF0-1o=2400 l2=38F H=

WN350B-10T0 RF1F65-10RF D=19000r

WN8