HG/T 20592  法兰 WN 150-100 RJўВ аёёаё

WN150-100 RjўВ аёёаё

WN 8"-300 RF

JWN 50×80-300 T Sch40S

WN25(B)-25 RF40 H=12crf/

SO 40(B)-25 FM20000-1/hh40FRFFF100-15 pl600(ch40Sf1=3@п�9eS-RFWN Sc@FRï؟½@BL600-150 R

SO 2"-150 RF

WN 8"-300 RF Sch40

BL400-10 RF

PL 350(B