HG/T 20592  法兰 WN 1400-10 RF S=10

WN 1400(A)-10 RF S=10

WN500-150 RF7

WN 18"-900 RJ Sch80S S=20.6

SO25(B)-16RF C=24

so600 -10 rf/ 1000-1.05h800

wn80-25rf s=818R/

WN 100-600 RF s=6600�pa

47023CFM 450-1.6

BL 32-100 RFLWN RJ4 d=1

SO 50-25 RF-1 RF ScF4.0M�066150RF2RERF SCH160F