HG/T 20592  法兰 SW 15(B)-16 RFc0S Sch400e2184F2R�0.6&ampampampa

lwn25-300rfb0-0(b)-=1

SW15B-16RFc0S Sch400e2184F2R�0.6&ampampampa

BL32-63RJn25-16=300

SO 250-150 RF Sch04 Ⅱ80S=m)

PL 15(B)-10 RFJ f1=1.56C=0(b)-16

WN150-900 RJ B=-1=

WN400-300 RFm s800-�Б∙≤

PL100(B)-16 RF65 16 FM S=28.2F 0-

wn15b-160g52