弯头 DN 400-Sch16090ELRFl25(b)-16rf r1/u

DN 400-Sch160 90ELRFl25(b)-16rf r1/u

LWN50-600 FM

bâ… 2600f/@BII 1000/

47021 m550-1.6201.

BWN 1200-150 RF S=700-0.25 700-1´=60103nⅱhg/70-1

WN40(B)-16 RF S=6=2234

BL80-2500 Rj 6 RF)-16 R5(B)-16S=700-1.0

WN20-900RJ=451.6 RF-0.62

wn15-600m s110