HG/T 20592  法兰盖 BL 350-10 RFåC=2065 RJj@5

bL350-10RFåC=2065 RJj@5

WN 50(B)-25 FM S=540(b-1.6 *=70 h=16516

WN25-300 RF Sch40

wn 300-150 rf s/-

BII 2800

20615WN250-150RF

47065.3 C1-40b251.B)29/

so100(a)-6rf

pl32b)-40rfr2)2-1

WN 80-300 FM S=5.6.0 Sch-14.50 FF00 LT@4F�؟½16 F-1.0 δcF0RF1-1a