GB/T 12459  弯头 DN 50-Sch3045EL625F=5 f2=43 T

DN 50-Sch30 45EL625F=5 f2=43 T

PL600(B)-16 RF�һВ°Ш·ВСһР�в„�

wn65-900 rj=1/cC=18 b=3/d00 Sch80 H RF)B)-1 c10a R40/

wn50-600rfs=5.54

PJ/SE 150(B)-25 RF S=4

SO 1"-150 RF

47021fm450-1.0

PJ/SE 150(B)-16 RF S=4

SO 20-150