HG/T 20592  法兰盖 BL 250 -10 FF 500-

bl250 -10 ff 500-

WN50-900 T S=5

WN32(B)-100 M0-0.64 4101/600RF

bwn800-300rf/st3Sch40R0@F6 FF100 c=2

WN80-150 RFSO100130S)-100 RF5)-16rf/

BL50-10RF

SO 3"-150 RF

WN 100-600 RF S=6.0260-1RF005/13ss

SO 25(B)-16 RF=ch80-0.25i100 fm0H=19

WN 600-