HG/T 20592  法兰盖 BL 600-6 FF d=620 k=585 aa=534 l=18 c=1

bl600-6ff d=620 k=585 aa=534 l=18 c=1

PL32-10RF A AA=.5 D40FS= RF5fm900-1.6/8015ff

PL65B-40RFampamp

SO 150(B)-16 RF LW48pa1pam

WN 15-900 RFFf1=62/8 S1=160-0.2516ch

PL80-10RF(A

SO 32(B)-16 FF-600RF0EL-/8d= RF)

PL500(B)-6 RF b=1R S=4.5ch400-

SP-4 DN0-