HG/T 20592  法兰盖 BL 40-10 FFf/static/RFF150

bl40-10fff/static/RFF150

DN125-PN10 PL RF 1RFf/@

SO 50(B)-16 RF

SO 15(B)-6 RF

WN 300(B)-16 RF S=2882

LWN 25-150 RF H=607

SO15-300g8 FFpf0fmlmpampampam

SO 15(B)-6 FF

3 FM 450-2.5

WN80(B)-16 RF60756 r8 δs=10F8rf5165F Sch40 rFSFRJsF0-1.025/82-0FRF0a)-1