Hoʻokumu ʻia i ka makahiki 2007, ʻo Ningbo Haishu Nide International Co., Ltd, he loea i ke kahua kaʻa, hāʻawi i kahi hopena hoʻokahi i nā mea hana kaʻa, e hāʻawi ana i nā ʻano ʻāpana ʻano like ʻole, ʻo ia hoʻi me ka commutator, carbon brush, ball bearing, electrical insulation paper, etc. .
1, ka lipine pepa insulation i ka pepa insulation kumu ma ke kumu o ka oki ana i na laula like ole.
He ʻāpana koʻikoʻi ka commutator o ka mīkini dc a me AC commutator armature.
ʻO ka hapa nui o nā mea i hana ʻia me nā molekala i hana ʻia me nā ʻātoma i hana ʻia me nā nuclei a me nā electrons. I loko o kahi atom