Celerity, Inc.

Le Si Company was founded in 1989 with a total investment of over 100 million yuan. It is one of the five key backbone enterprises in Zhejiang Province, specializing in the production of Le Rui brand acid, medium, direct, and leather dye series produ

Nanjing Kangzhuo Environmental Technology Co., Ltd., formerly known as Nanjing Shenglan Automation Co., Ltd., is located in Xiongzhou Industrial Park, Liuhe District, Nanjing, with a superior geographical location and convenient transportation. Kangz

Established in 1964, we are a privately held company that manufactures and markets specialty chemicals of high purity. Our clients include academic, industrial and government research labs.