HG/T 20592  法兰盖 BL 125-16 FF0 S=4.0 h=118RF16)-8)-F s=4-

BL125-16ff0 S=4.0 h=118RF16)-8)-F s=4-

so500(b)-10 rf s=162rf b=570+6)-1=F/50

WN 50(A)-25 FM S=5r0p25rf S=6/C08FM S=44.5RFS05ScfFSS=503II

BL80(B)-2500RJ=/=66.1.6c10000cf4.15625-10RF00m0-1.0f00-1.6/mp0R

WN25-16 RF S=300 h66 M53120.6ampampampampa1hSch