HG/T 20592  法兰 WN 500 (B)-63 RFSc Sch40

WN500 B-63RFSc Sch40

BL450A-25RF451800-1.04(b

SO5"-150 RF SNP/T

BL80(B)-40 RF

BL 2"-150 RF

LJ 200(B)-6 RF

WN 80(B)-63 FM S=4

SO 50-16 FM

bl450(b)-6rfRF

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