弯头 DN 200-SCh8090ELm S=10 s=/

DN200-SCh80-90ELm S=10 s=/

B WN700-300 RF B WN700

3 m800-1.6 ÃÅ

wn32-300rf sch80

47023 fm450-6.4/-1.0 δ=67-1.66=3.5RFch8

WN500(A)-16FMRF/14RJ SC RF0RF0/4&100/

PL400(B)-10FF C=30 B1=433

20592 WN300-63RF

PL40(A)-16 RF B1=53.1 b=20s102

3 fm