GB/T 12459  弯头 DN 250-Ⅱ-690EL/0-165 H

WN40-25rf7/u00HG/

DN 250-Ⅱ-6 90EL/0-165 H

PL400-10 RF t=1�ӘРb/

PL 50(B)-16 RF761

WN200-40RF B/SchFRF006t RF50 s=43600 RFFH;a°=22

WN400-150RF s RF0T80S/140RRF0

WN400-150RF00-4.0 WN50-

WN25(B)-25 TG/85 B1=90 K=15/==5.16h820615-2H8f40 R

WN250-1