I le aso 21 o Iuni, 2021, o le YE4 series (energy efficiency IE4) tolu-vaega asynchronous motors atiaʻe e Hebei Electric Motor Co., Ltd na tuʻuina atu le "China Certificate for Energy Conservation Product" mai Saina Quality Certification Center.E le gata o la matou sao i le faʻaleleia o le malosi o le afi a le atunuʻu, ae o le laasaga muamua foi e faʻalauiloa ai le galuega o le "Emission Peak and Carbon Neutrality".

O matou YE4 tolu-vaega asynchronous motors o taʻavale sili ona lelei mo ili, pamu, compressors, hoists, centrifuges ma isi meafaigaluega i alamanuia e pei o vailaʻau, sima, pepa, uamea, suauu ma kesi masani ma isi.