HG/T 20592  法兰盖 BL 15-16 FF D=90 C=2 K

BL15-16FF D=90 C=2 K

3 RF 500-2.5 δ0=1450=≥8Rch80S S=5b

20615 WN150-150RF Sc

so40-25t b=sF80S

3 FM 600-2.5amp-16RFRFfrfrfm5S16 rf17nim/T20592.6=7.

BL 6(B)-16 RF RF RF BfS=3.5.2 h1==1S=30T S=3

3 FF 1000-0.2520δ0=10

3 RF 600-4.0 δ0=15=4cS R15hB06