HG/T 20592  法兰盖 BL 10-16 M12 a1=40В°600 r

BL10-16M12 a1=40В°600 r

SO 200-300 RF4/.50920-66 RF22J0-300RFu0δ000b4n RF16

pl32b-10rf h008Ff.6/

bl300(b)-25m6 RF=1

A WN 800-600 RF S=3

WN40(B)-900 RF6F52G/009

bi 1700-s/146g-10.500.S=1053M45ch405ff stef16M0-

SO 350-150 RF806145h80Sb=

pl40(b)-25 r