国产91色在线|亚洲|免费看片一级无码福利|国产偷跟踪视频在线观看|欧美性受XXXX白人性爽|日产无码精品一区二区三区|曰韩精品少妇人妻在线网站|欧美一级特黄大片在线播放一|国产成在线观看免费视频成本人

Tel: +86-531-87153728 87960445 87151180




About Us


Located at Jinan, city of springs in Shandong Province, Jinan Welt Chem. Co .Ltd is a professional manufacturer of pharmaceutical intermediate and fine chemicals. We serve customers specialty products in a dynamic global market, offering marketing and logistics expertise.
Our company has advanced lab of organic synthesis, analysis center, semi-works and production basis. We have additional corporations with scientific institutes.  Great achievement has been made in new technique research and new chemicals developing.
Through creating new and useful technologies and products, Welt Chem continues to work improving overall quality and build higher levels of innovation into our products .Our vision for Welt Chem is to shape the world’s leading brand.
For further information on Welt Chem please contact us.





Copyright(C)2022 , Jinan Welt Chem Co.,Ltd. All Rights Reserved.  Supported by  ChemNet  ChinaChemNet Toocle Copyright Notice