GB/T 12459  弯头 DN 400-Ⅱ-890ELh40

DN 400-Ⅱ-8 90ELh40

wn40(b)-40 rf 1ä»200�6S25rf s=6

WN25-900RJ S=3.h100=

1 RF 700-1.0lB)-10RFwn25(a)-44.0/180-1.0(

HG/T20592-2009BL200-16RF

WN200(A)-40 RF

47023 -FM1400-1.0.6/a3/u00PL500(bF2pampa

WN40-1500RF D=1â°so450voker/i

WN50-2500RJ0-0.6F