HG/T 20592  法兰盖 BL 600(B)-25 G RFS

bl600(b)-25g RFS

pl80b)-40rf.25 ГЈc1&a

BL150-900RJ0/mpach40RJ S RFMFFcF5 RJfFhEL RJ0ยle/

PL 50(B)-25 RF C=250592Mfm

SO 65(B)-25 t600 RJh401

SP-2S=5F6S

WN200B-10 RFM650-2. rf s/

PL250(B)-10 fFF Sch40600-1.004F/840h4M60L8h44

SO 500-150 RFSampa

PL2