H&R Wasag AG

Today, CEROBEAR is the leading manufacturer of ceramic rolling bearings and a pioneer in rolling bearing technology. Ceramic rolling bearings are a key product for industries and processes with extreme requirements such as the semiconductor and aeros

Main products: Shanghai Yukang Biotechnology Co., Ltd. is committed to technological innovation and provides customers with various advanced fine chemical intermediates containing pyridine (bipyridine, tripyridine, aryl substituted pyridine, phenanth

Guizhou Qingzhen Ruiri Fine Chemical Co., Ltd. is a modern enterprise specializing in the production of essence, pharmaceutical intermediates, rubber additives, photoconductor materials and other products, with strong technical force and production c