GB/T 12459  弯头 DN 100-3.0590ES1=c1&ampampampampampamp

DN 100-3.05 90ES1=c1&ampampampampampamp

wn500(b)-25rfs=11RF-1c0 î0

47023 rf1500-0.6 未=70 h=165/

SO 300(B)-40RF

WN 500(B)-16RF D=400.6/342.5

WN150(B)-16 RF S=5.430c

WN 200-300 RF Sch40S

SO 250(B)-40RF

WN300(B)-25 RF S=10

WN250-900 TF00