HG/T 20592  法兰 PL 600-10 FF1F=1410SH20- a=42.FM-2.5F6035 s= bF S0.

pl600a-10ff1F=1410SH20- a=42.FM-2.5F6035 s= bF S0.

pl350(b)-16 ffN450-

WN 15(B)-16 RF S=31

LWN 40-600 RF B=38 H=200

wn500-300rfsch80s60-1.6Rb=

SO250-150 RF6rf25286SrM Fmp16

WN20(B)-25FMS=4

WN200-300 RF Sch40/.05/65=5 L=3

WN 350(B)-10 RF B=361p62

SO 8