Hongda Group | Address: Xincheng Guoji, 535 Qingshuiqiao Rd., Sci-tech Park, Ningbo, Zhejiang 315000, China 
www.hongda-chem.com | Phone: +86-(574)-87907888
Hongda Group specializes in providing dyestuffs, pigments, pharmaceutical products and their intermediates. We are an ISO 9001 & ISO 14001 certified company. We offer textile chemicals, resin additive more...

Wenzhou Dongsheng Chemical Reagent Factory | Address: 1#3 tents, Xialingxincun, Shuangyu Town, Lucheng District, Wenzhou, Zhejiang, China 
www.ds-chem.com | Send Inquiry | Phone: +86-(577)-88781113, 88781027
Wenzhou Dongsheng Chemical Reagent Factory manufactures chemical reagents. Our product includes sodium hydrogen sulphite, sodium metadisulfite, potassium metabisulfite and litmus. We specialize in sul more...