HG/T 20592  法兰盖 BL 80-16 FFc=b-36/ch4000-16)-RF B=4

BL 80-16 FFc=b-36/ch4000-16)-RF B=4

20592 pl300-16rf0592-2009RF S61 S=3/F=20MS=6fmf sch8/

wn 650(A)-600 RFf1-150RFFŽ50 RF6&

WN150-150 RFS=1 H=

WN 150-150RF S=8Т–ТЎР“вҖһ�

SO25-300 RF26 K===698fmCH40S22 RF0(B)-4

PL 40(B)-16 RF

WN 250-300