ʻO ka lako mana AC series AS ka hopena o nā makahiki he nui o ka ʻike o Yingjie Electric i ka lako mana SCR AC, me ka hana maikaʻi loa a me ke kūpaʻa hilinaʻi;
Hoʻohana nui ʻia i ka metallurgy hao a me ke kila, ka fiber aniani, ka uhi ʻana i ka vacuum, ka umu uila ʻoihana, ka ulu ʻana o ke aniani, ka hoʻokaʻawale ʻana o ka ea a me nā ʻoihana ʻē aʻe.