Dongguan Huashengyi Environmental Purifying Technology Co., Ltd. E-post:sales@hsy-airfilter.comToAllen: sales01@hsy-airfilter.com E-post:HSY_waimaobu@126.com Wechat ja WhatsApp: +86 13266187584 (Allen) Whatsapp: +86 18985272474 Aadress: No.113 uus anyuani tee, Dongchengi piirkond, Dongguani linn, Hiina.