GB/T 12459  同心异径管 DN 15×15-Sch30RC�╘п╠Б�

DN 15×15-Sch30 RC�╘п╠Б�

bl32-1500m2pl40(a)-16r-f10

WN50(B)-10 RF D=1=1

Wn450-900RJ´0=1016MnⅡ40 RF S=5mm)-FF

wn40(a)-40 rf s0F444 Sch85M/u05B

so250-16ff b=4 a�Mndef45 SO300(rfq.

wn100(a)-150 RF sch10s

so65-40rf S=7.1 S=

DN50-PN40 BL