An organic dye suitable for use with a metal such as aluminum or steel. Alizarin Cyanin RR, Alizarin Green sulfur, Nigrosine 2Y, and Naphthalene Blue RS are used for this purpose.
Hangzhou ZeErRui Chemical Co., Ltd. Hangzhou ZeErRui Chemical Co., Ltd. located in Lingang industrial areas, our plant covers an area of 6000 square me.. Nanjing Freehoo Chemical Co., Ltd. Nanjing Freehoo Chemical Technology Co., Ltd. was founded in 2012. since then we have been committed to the resea..