HG/T 20592  法兰盖 BL 600-16 FF0615005 K=345 L=34 n=12 H=1F4

bl 600-16ff0615005 K=345 L=34 n=12 H=1F4

PL350(B)-6 RFF ODh/rj0S00RF B=80C=L=n=-d10-1.6/76-140b)-16@A rf

bl20-63fm=210

PL100A-10 FF ODh/rj0S00RF B=80C=L=n=-d10-1.6/76-140b)-16@A rf�å�

法兰PL20-6RF0M5RF16 RF(B)-25FM S=5mm so 40 rf-4RF5sch02EL