HG/T 20592  法兰 SO 80(B)-25 RF)-16 RFrf10 R16 RF S=8N RF Ⅱ S=5 R

SO 80(B)-25 RF)-16 RFrf10 R16 RF S=8N RF Ⅱ S=5 R

PL125-16RF d5RFRFs241600-10 RFRF5/5δ=8

WN 200-25 FM40RFSchd=212 c=20t0RF 50r=3.58hg/40RF

bl100-1500 rf sc/ R=52.3 D=160 C=orum

WN 2"-300 RF XSRFRj F96h40/300)5CNR000 RF10000-s/R00 RF Sch40S

WN4