GB/T 12459  弯头 DN 65-Sch4090ES/ampampa

DN 65-Sch40 90ES/ampampa

wn 25(b)-1500rfRFRFB)-16RFRF25RFF00-1400b0/S00

wn25(a)-300rf a=

BL500-600RFF0

WN400-900 RJ SCH100 B=354

wn150-1500 rj scRFsch80=27 H=21

PL 80(B)-10 RF/N100-150 RF-

JWN 50×80(B)-25 RF S=3.5

sw40(b)-25 g R

Th(NPT)50-300 FF300c