YYPL03 yog ib qho kev ntsuas ntsuas tsim raws li tus qauv 《GB/T 4545-2007 Test method for internal stress in glass fwj》, uas yog siv los ntsuam xyuas cov annealing kev ua tau zoo ntawm iav fwj thiab iav khoom thiab soj ntsuam cov kev nyuaj siab sab hauv.
cov khoom.
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