HG/T 20592  法兰 WN 350(B)-6 FM0 H=274B=66.5 H=2000s=4M6

WN350(B)- 6 FM0 H=274B=66.5 H=2000s=4M6

WN80(B)-16GR=RF S=12 R

bl500-10g50-1FL RFFFampampampa

PL 100(B)-16 RF50-2h40-150rff d=330 b

WN200(A)-300 RF S=6.5S=87

PL20-10RF f1=7 D=95-150 RF B=Sch4

HP-3 δ=12687ftrf s=8=06000)-

BL600(B)-150 RFh40 S=

23 FM