Customized Ruby Bearings Al₂O₃ Jewel Bearings for Precision Instruments and Watch Movements Ruby Bearing Product Overview Customized ruby bearings are made from synthetic corundum (Al₂O₃) doped with ...Взгляд больше
Сообщения посетителяВЫЙДИТЕ СООБЩЕНИЕ
Пока нет комментариев
Customized Ruby Bearings Al₂O₃ Jewel Bearings for Precision Instruments and Watch Movements