91精品国产搜索一级毛片_国产精品中文无码第一页av在线_久久久久久亚洲MV无码专区_免费级黄片免费级毛片

Changzhou Wujin Minghuang Chemical Co.,Ltd. is specialized in the manufacture of coal tar series chemicals, including Naphthalene series (1-Chlormethyl Naphthalene, 1-Naphthaldehyde, 1- Naphthylacetonitrile, 1-Naphthylacetic Acid, 1-Naphthylacetamide), Anthracene series (Anthracene, 9-Bromo Anthracene, 9-Anthraldehyde, 9-Anthraoic acid), Phenanthrene series (phenanthrenequinone, 9-bromophenanthrene), Fluorene series (Fluorene, 2-Amino Fluorene) etc., Most of which are exported to the United States, Japan, and Europe.

We boast top-notch technical force and advanced production techniques.

We sincerely welcome the cooperation of friends home and abroad for a bright tomorrow!