成人国产在线看不卡|91麻豆精品国产自产|日韩欧美精品一中文字幕|色欲AⅤ蜜臀一区二区三区|日韩中文无码有码免费视频|日韩精品中文字幕乱码一区|亚洲制服丝袜第一页二区三区|日韩少妇人妻vs一区二区三区

Established Dongguan Dongsong Smartlink Technology Co., Ltd.

Established Yueyang Dongsong Electronic Co., Ltd. Realized full-automated production of AC power adapters.

Establised Dongsong International (Vietnam) Co., Ltd.

Established DYS International (HK) Ltd.

Established Dongguan Dongsong Electronic Co., Ltd.

Establised power supply design office