Tempered iav ntsig txog cov qauv

GB/T 9963-1998 "Tempered iav"
GB15763.2-2005 "Tempered iav"
GB/T 531-92 "Test method for Shore A hardness of vulcanized rubber"
GB 1216-85 "Sab nraum micrometer"
GB 4871-1995 "Ib puag ncig iav"
GB 5137.2-1996 "Test method for optical properties of automotive safety glass"
GB 11614-89 "Float glass"
JC/T 677-1997 "Tsim txoj kev simulated cua siab ntawm cov khoom zoo li qub ntawm lub tsev iav"