GB/T 12459  弯头 DN 900-Sch2090EL

DN 900-Sch20 90EL

PL 15(B)-10 FF

WN 300-150 RJ Sch40S

IF 20-63 RF

WN80(b)-63RFampamp

WN 80(B)-100RF S=4.5

TH 10(A)-100 RF

IF 15-63 RF

3 RF 1600-1.6

PL500-10 RFScFFCG46050 FFaF5cMS0�X@w5@RFS5 RJ00pampRF@420Rch44 RFrf5 RJfFF@RF RF=35RFF0s300 RFrf@40@