丰满熟女人妻中文字幕免费,最新亚洲国产手机在线,狂野欧美乱特黄A片,精品日韩人妻一区二区欧美,亚洲AAAAA特级

Welcome to ShiJiaZhuang Old Bridge Chemicals CO., LTD.

News

What is 4-methylimidazole used for?

Postdate:2024-04-23

4-methylimidazole is white crystal, ShiJiaZhuang Old Bridge Chemicals CO., LTD. specializes in the production of 4-methylimidazole, 25KG cardboard drum packaging, annual output of 1200 tons, content ≥98%, is an important organic intermediate. It is mainly used in the synthesis of bulk stomach medicine cimetidine, and can also be used as epoxy resin curing agent and metal surface protection agent.