jacksonmoss 发表于 2013-12-5 18:15:06

BS 7663 : 1993

BS 7663 : 1993
Methods of test for determination of permittivity and dissipation factor of electrical insulating material in sheet or tubular form


admin 发表于 2013-12-5 18:52:38

谢谢您的分享，金币已奖励！

2013 发表于 2013-12-5 23:38:18

谢谢分享！！！！！！！！！！！！
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