GB/T 12459  异径三通 DN 500×500×250-Sch120TR

DN 500×500×250-Sch120 TR

BI 450-4.0/0c3/u78150RF

wn25(b)-16 rfs38

WN65-600 RF S=3

WN40-40RF S=5334mpamm0@�222@RFf6�@4RFfR�´s=621

PJ/RJ 250(B)-16 RF

47021 RF450-1.0/

47021 rf1200-0.6m

bl80-100 thg/

DN65-PN16 PL RF Ⅱ C=18Fch0RF00.5 RJF/�5