GB/T 12459  同心异径管 DN 200×150-Ⅱ-4RC60.6010 AA=826 H=85.sch160023

DN 200×150-Ⅱ-4 RC60.6010 AA=826 H=85.sch160023

wn600(b)-40 rf s=12 c=10.RF

BL100-150 RF

PL400(B)-6RFL300(B)-1-1.6δ)-1

BII 100007)-5=45150 1

DN 50×25-Sch40 RCRF50RF.

WN 15(A)-63 M S=3

WN40(B)-16 RF S=410

wn25(b)-10rf1001æ—