HG/T 20592  法兰 PL 200(B)-10 FF B=100 Sch80sF0 RF RFFM.22

PL200(B)-10 ff B=100 Sch80sF0 RF RFFM.22

WN 400-600 RFr5 B=241=6Sc

47023 FM 700-1.0550s/ch803pamp

WN100-150 RF /60-120 RJl1/130-16 RF1

3 FM 1000-4.0 δ0=1013r00RF/

WN 500-600 RF Sch160

bl500-10gs0rf580 H=181Mad.0-

BL 25-16 RF95(B65RF B50RΦ500=3

SO