GB/T 12459  弯头 DN 100-Ⅱ-1090ELpampampnbs

DN 100-Ⅱ-10 90ELpampampnbs

PL 125(B)-16 FF6 CL25-40F20615 wn

SO40-150 RFn65-1500=

WN 300-1500 RF

SO 50(B)-16 RF

WN 25(B)-63 RF S=4

WN RF 10K 400AWN RFRF0п·

法兰 PL50(B)-16FF

WN 350-16 M S=16

PL32(B)-10RF=1.L0S-40F20615 wn06 FM40S20δ00b30H40Sm