Dongguan Huashengyi Environmental Purifying Technology Co., Ltd. ອີເມລ:sales@hsy-airfilter.comເຖິງAllen: sales01@hsy-airfilter.com ອີເມລ:HSY_waimaobu@126.com Wechat & WhatsApp: +86 13266187584 (Allen) Whatsapp: +86 18985272474 ທີ່ຢູ່: No.113 new anyuan road, Dongcheng District, Dongguan, China.