弯头 DN 50-Sch80S45ELFrfR.6

DN 50-Sch80S 45ELFrfR.6

WN100-150 RF D= RRF ff1.5 RF0rf55 s

wn50-600rfch4004

BL15-25RFbm10‚

WN450-900FM=16PL4380RJ0 rRF 20592-2

wn20(a)-40rf

47023RF500-10RF.6s=3.5=20RF L=39 n=0-1/F

wn40-150rf a=21.3 s=3 h=58

WN600-600 Rf0092/u00c3g/t20592f s1F

WN