GB/T 12459  等径三通 DN 80-Ⅱ-2TS

DN 80-Ⅱ-2 TS

PL 500(B)-10 RF)-RF

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WN50(B)-25RF0.6

BL 250-40 RF

LJ 150(A)-2.5 RFRF 4e5 RJ-1616175-25��5 RJ-16

21520PL125(B)-6RF

PL125(B)-16RFR

WN150-300