欧美特一级黄色网啊_三级av一区二区三区中文字幕_国产精品自产拍在线观看55_亚洲午夜高清国产自

Intermediate

With benzoic acid, phthalic anhydride and isophthalic acid as starting materials, the company synthesizes 3,5-Dinitrobenzoic acid, 3,5-Dinitrobenzoyl chloride, 3-Nitrophthalic acid, 3-Nitrophthalonitrile, 4-Nitrophthalic acid, 4-Nitrophthalonitrile , 5-Nitroisophthalic acid, 2-Methyl-6-nitroaniline and its derivatives, which are mainly used as medicine, pesticides, dyes, spices, new material intermediates.
25 Records 12
Home

Home

News

News

About us

About us

Product

Product

Contact us

Contact us