HG/T 20592  法兰 PL 400(B)-16 RF0F Ⅱ80FMSCH66F26a1/u00h40 2RF=7�ذ•�90mfm s/Bquo

PL 400(B)-16 RF0F Ⅱ80FMSCH66F26a1/u00h40 2RF=7�ذ•�90mfm s/Bquo

WN 150-150 RF Sch40

B WN 700-150 RF

WN 80-300 RF Sch80S

WN 500(B)-25 RF

WN 350-150 RF Sch20

WN 8"-300 RF

LWN 6"-300 RF

WN 80-150 RF Sch40

B WN 800-150 RF Sch20-200930 T