04-27
2018
Nantong Zhengyan New Materials Technology Co., Ltd. Established in 1976,Our company is one of the earliest high performance organic pigment and metal complex solvent dye manufacturers in China . With the most advanced production line in China our com
04-27
2018
Nantong Zhengyan New Materials Technology Co., Ltd. Established in 1976,Our company is one of the earliest high performance organic pigment and metal complex solvent dye manufacturers in China . With the most advanced production line in China our com