弯头 DN 40-Ⅱ-390EL D=42 A=850 RF(B)

pl450(b)-6ff bb=2150RFFSRF Sch80S0 δ0=18rf/t

DN 40-Ⅱ-3 90EL D=42 A=850 RF(B)

wn25-2500 rf sch180

so200(b)-25 rf 1

BL40-6rf6 RF40 H500

WN250-25 MFM4

+nb/@pl100(b)-16 rf001.6/1.6/h=56δ=f500 RJ/5550mg/f

BL80-10FM

wn300-1500rf s/u00c3=7S R/0s H=200