欧美日韩三 I 激情成人亚洲 I 欧美自拍 I 欧美最猛性xxxxx(亚洲精品) I 成人黄视频 I 97碰视频 I 国产精久久 I 在线视频免费观看一区 I а天堂中文在线官网在线 I 一本久道久久综合久久爱 I 日韩色影院 I 亚洲图片自拍偷图区 I 黄色三及毛片 I www.999av I 午夜精品av I 生活片全黄一级 I 国产欧色美视频综合二区 I 国产做爰xxxⅹ性视频国 I 曰韩无码av片免费播放不卡 I 四虎影院免费视频 I 久久狼人综合 I 久久亚洲精品人成综合网 I 全黄激性性视频 I 日韩国产三级 I 国产揄拍国产精品 I 久久狠狠高潮亚洲精品 I 色很久 I 一本岛在线观看 I 久久综合伊人77777蜜臀 I av中文字幕观看 I 亚洲精品久久久久 I 日韩欧美aaaaa ai换脸ai换脸一区二区三区 I 久热精品视频在线免费观看 I 国产mv免费观看入口亚洲 I 日本一区二区三区视频视频

Changyi Longgang New Material Co., Ltd.

  

Changyi Longgang new material Co., Ltd. is located in Binhai (Xiaying) Economic Development Zone, covering an area of 267 mu. With a total investment of 638 million yuan and a planned construction area of 93000 square meters, the project mainly produces high-end inorganic silicide series products such as new marine machinery rust inhibitor, ultra-high purity silica, spherical macroporous silica gel and so on. After the completion of the project, it will break through the key preparation technology of the industry, establish a first-class inorganic silicide innovation chain and industrial chain, and build a high-end all intelligent factory in the industry and a domestic advanced inorganic silicide production base. The project has been selected as the preferred project of new and old kinetic energy conversion in 2020.

Changyi Longgang New Material Co., Ltd.

Longgang New Materials

Tel.: 0536-6039999

Project address: Binhai (Xiaying) Economic Development Zone, Changyi City