GB/T 12459  异径三通 DN 500×500×350-Sch10TRdmin-RFrr-1RF

DN 500×500×350-Sch10 TRdmin-RFrr-1RF

bl500(a)-150rf-1ch4003 S=3.

bl20-150RF Sch80s S/0R

so20-600 mf-sc).5

en1092-1/@so100-150 rf m@a wn1000-1h40=3M14RF SCH4

SO 200-150 RF S=4RFF

so40(b)-300 rf-150RF S

so200b-16rf00-1.05-30FSc650

BL100-10 RF n=8

470