HG/T 20592  法兰 WN 50(B)-40 M s=46 RF16RF140 B=52 f1=3 MX=Y-F02(b)-16rrf R=3

wn50b-40m s=46 RF16RF140 B=52 f1=3 MX=Y-F02(b)-16rrf R=3

BL 65-10 RF

wn80(b)-25tg RF S=/s=340

PL600(A)-16RF0=10=100=3 c=2683

PL25(B)-10 RF BB=2590 b=73=4 A4-10rf=3=5=60 h=4

PL100(B)-10RF D=378 K=350 BB=300 C=15 f1=1.5 d=330RFmpam135RFS

bl500(B)-16FFD