Jinan Zhongtang company is a professional manufacturer and exporter of CNC equipment.We have high-quality CNC Woodworking engraving machine , Stone engraving machine, Multi-spindle CNC Engraving....

We are one of the most famous manufacturers of Aramid fiber and Red Phosphorus Based Flame Retardant masterbatch in China. For Aramid fiber, there are normal grade as well as high performance grade....

Mangosteen fruit is known as the " queen of all fruits" . Mangosteen rind is usually used as natural dyes and raw materials of medicines. It contains mangostin, mangostenol, mangostinon A,....