????????????????????????????????
2014??1??6??????????????????????????????????????????????????????????????????κ?????????????y????????????????y??????y????????£???????????????????????????????????????? 1070 ?? 1370??????5 mm (+/- 0.05 mm) ????1.0 mm (+/- 0.02 mm) ???????ò??????????7605.19.000?????????????????2010??11??12????????????永??????????????2010??9??7????????????永???????????
2013??8??20????3M Company????????????????????????з?????????????????????????????顣