GB/T 12459  异径三通 DN 450×450×80-Sch20TR54520-10/RF

DN 450×450×80-Sch20 TR54520-10/RF

WN 200(B)-25 RF Sch80

so500(b)-16 rf b=912

so150-16rf�a

wn 80-300 rf sch40s

SO20-150RFawn50=3h40SM0RF

wn125-10RF

wn15-16 t s=3

wn250(b)-16 rf s=11 d=460 k=410 h=78 c=28 d=378

wn500(b)-25rf s=14SFMRF@442650RsFFdat