http://pastport.jp/user/eaststeel ja-JP JIANGSU EAST STEEL CO.,LTD focuses on metal surface coating business and has an industry-leading product production line.https://www.es-color.com/ 2022-02-10T15:08:38+0900 http://pastport.jp/user/eaststeel/timeline/eaststeel eaststeel http://pastport.jp/user/eaststeel/timeline/eaststeel