Dongguan Huashengyi Milieuzuiverende Technologie Co., Ltd. E-mailadres:sales@hsy-airfilter.comTotAllen: sales01@hsy-airfilter.com E-mailadres:HSY_waimaobu@126.com Wechat & WhatsApp: +86 13266187584 (Allen) Whatsapp: +86 18985272474 Adres: No.113 nieuwe anyuan-weg, dongcheng-district, dongguan-stad, China.