免费又黄又爽又色的视频_丁香花在线观看免费视频_无论几次我都会×X你_91嫩草欧美久久久九九九_麻豆av久久一区二区三区王玥

江蘇恒興新材料科技股份有限公司

Jiangsu Hengxing New Material Technology Co., Ltd.

The company specializes in R&D and production

organic ketones, acids, esters, alcohols, aldehydes, ethers and acid anhydrides, etc.


關(guān)于我們

about us

Hengxing New Material Technology

Lianyungang Zhonggung Fine Chemical Co., Ltd. (Founded in 2010)

Product categories: solvent fine chemicals of organic ketones, acids, esters, alcohols, aldehydes, ethers and anhydrides.

Major products: acetone, 3-methyi-2-butanone, isobutyric acid, (iso)valeric acid, isobutylisobutyrate, (iso)butyric anhydride, etc.