HG/T 20615  法兰 SO 10-1500 RJ

SO10-1500 RJ

IF 250-63 RJ

SO 100-150 FF

SO 125(B)-16 RF

WN 8"-150 RF Sch40S

BL25-600 RF

DN25-PN16 PL FF Ⅱ

PL 80(B)-16 RF

WN-150-150 RFS=7.1

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