Rongda Chemical Co.,Ltd https://www.rongdachemical.com/ +86-731-28813327 Sodium thiosulphate, Sodium carbonate, Sodium metabisulfite specification manageryang@rongdachemical.com Sodium thiosulphate, Sodium carbonate, Sodium metabisulfite specification Rongda Chemical Co.,Ltd is an export-oriented enterprise specialized in producing and marketing inorganic chemical material. Located in LIYU Industrial Park in Zhuzhou City , Hunan Province, no more than 100 km away from Changsha port. Our head company is Zhuzhou Mingqi Chemical Co.,Ltd .which was established in 2007,famous by the great performance and reputation in domestic chemical market. Actually we are biggest distributor for sodium sulfite in China. Rongda was built mainly for our export sales, has its' own invested and cooperative facilities , and also represent some other renowned suppliers in China. Our product has been approved ISO 9000 certificate, which has high purity and stable quality. We can also customize special package for each customer . We believe our principle of "quality is our culture" and "reasonable price , common prosperity". We would like to cooperate with all customers on mutual benefit and become your firm strategic partners.