HG/T 20592  法兰 WN 150-16 RF f1=2.53150/h B=922 H=1)5b=3 f1=3RFS=f/

WN150(A)-16 RF f1=2.53150/h B=922 H=1)5b=3 f1=3RFS=f/

wn100-150 t Sch4sa=U& RF S=7.640F-60 90EL0505RF50rR

PL 500(B)-25 FF

PL32(B)-10 RF

BL150-25FM40S=aa=1044 H=1050 RF S==10 WN300(B)-63FMch4

WN150(A)-100 RJ SCH40h1=20195 b=-25R4R06FRF SCh4060m

LWN 40