Hoʻokumu ʻia i ka makahiki 2007,Ningbo Haishu Nide International Co., Ltd, he loea i ka ʻoihana kaʻa, hāʻawi i kahi hopena hoʻokahi i nā mea hana kaʻa, e hāʻawi ana i nā ʻano ʻāpana ʻano like ʻole, ka mea nui me ka commutator, carbon brush, ball bearing, electrical insulation paper, etc. Ua kūpono kā mākou mau ʻāpana no nā ʻano ʻano ʻokoʻa like ʻole, e like me ka mīkini paahana mana, ka mīkini hoʻomaʻemaʻe vacuum, ka mīkini hoʻokiʻekiʻe puka makani, ka mīkini hui, kaʻa, ka motika, 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