HG/T 20592  法兰盖 BL 80(B)-10 RF.8 S=РЎ�

bL80(B)-10 RF.8 S=РЎ�

3 FM 500-2.5 δ0=8

PL250(B)-16 RF b=0 BB=mpaampsch8

BL100-900 RF SchB H1=1ch40 A=8RF Sc0=670

SO 1"-150 RF

SO 400-300 RF C=44 L=32-10 FF C/Scampampampampampamp

BL100(B)-16RF300/ RF0l65(a)-6rf0=

WN300-300 G

SO 25-150 RF)-