Chemical is defined as something that is relating to, used in, or produced by chemistry or the phenomena of chemistry. The methan products provided by Hubei Jiutian Bio-medical Technology Co., Ltd.,Zhejiang Multinpharma Co., Ltd.,Zhejiang Multinpharma Co., Ltd.,Tianjin Zhongxin Chemtech Co., Ltd.,Hubei Jiutian Bio-medical Technology Co., Ltd. aim to chemical industry.